CN112985860A - Test platform and test method for handheld seawater desalination machine - Google Patents

Test platform and test method for handheld seawater desalination machine Download PDF

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Publication number
CN112985860A
CN112985860A CN202110140636.6A CN202110140636A CN112985860A CN 112985860 A CN112985860 A CN 112985860A CN 202110140636 A CN202110140636 A CN 202110140636A CN 112985860 A CN112985860 A CN 112985860A
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China
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water
desalination machine
seawater desalination
temperature control
water tank
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CN202110140636.6A
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CN112985860B (en
Inventor
王海涛
王禹斌
赵方晓
王生辉
刘思晗
黄云飞
赵如娟
单科
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Tianjin Bluecross Membrane Technology Co ltd
Tianjin Institute of Seawater Desalination and Multipurpose Utilization MNR
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Tianjin Bluecross Membrane Technology Co ltd
Tianjin Institute of Seawater Desalination and Multipurpose Utilization MNR
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/008Subject matter not provided for in other groups of this subclass by doing functionality tests
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Thermometers specially adapted for specific purposes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

Abstract

The invention relates to the technical field of seawater desalination equipment testing, and particularly discloses a testing platform and a testing method for a handheld seawater desalination machine, wherein the testing platform comprises a water chiller, a temperature control water tank, a testing platform and a control system; the temperature control water tank is provided with a sodium chloride injection port, a stirring mechanism, a temperature control structure and a sensor for testing water temperature and conductivity; the test bench comprises a support bench, a large tool clamp or a small tool clamp which can be disassembled is arranged on the support bench, and a sliding bench assembly which can be matched with any one of the two tool clamps is also arranged; the two types of desalination machines are driven by a set of driving structure, and the tests of two products can be completed by switching programs and replacing tools; and the control system is used for acquiring the test data of all the sensors, displaying and analyzing the test data. The invention can use the same test platform to test different models of hand-held seawater desalination machines, and the testable performance parameters comprise temperature, water quality, pressure, service life and the like.

Description

Test platform and test method for handheld seawater desalination machine
Technical Field
The invention relates to the technical field of seawater desalination equipment testing, and particularly discloses a testing platform and a testing method for a handheld seawater desalination machine.
Background
With the continuous development and maturity of the seawater desalination technology, the seawater desalination technology becomes an important means for solving the water resource shortage in coastal areas, and various types of seawater desalination equipment are gradually put into operation to play a role. At present, the application of large-scale seawater desalination devices is quite mature, and the small-scale seawater desalination devices which are far away from islands with energy shortage on the continents, ships with limited power supply, offshore platforms, offshore emergency rescue, field survival, scientific investigation and the like are not suitable for large-scale seawater desalination devices, and are low in energy consumption and flexible in application are particularly important in special occasions with short-term and small-amount seawater desalination requirements.
Chinese patent CN201220240657.1 discloses a human-powered seawater desalination machine with energy recovery function: in the research and development process of the products, whether a matched test platform is provided or not also becomes the key of whether the small-sized seawater desalination equipment meets the use requirements or not.
The test platform is used for carrying out multi-working-condition performance parameter research and core component process research of the handheld desalination machine by simulating actual actions and setting different parameter conditions, and mainly comprises the following steps:
1) the multi-working-condition performance parameters are used for researching the performance parameters (including effluent quality, service life, stability and the like) of the handheld desalination machine under different working conditions such as different influent water quality, different temperature, different frequency and the like;
2) core component process research: the matching condition of the piston cylinder and the piston rod of the core component is monitored through the pressure sensor, and then the process of the component is perfected.
According to different axial sizes, the handheld seawater desalination machine is commonly used by a plurality of people, namely the handheld seawater desalination machine and a personal portable seawater desalination machine, and the length, width and height of the personal portable seawater desalination machine are 23cm multiplied by 10cm multiplied by 18cm (without a handle); the length, width and height of the hand-held seawater desalination machine for multiple people are 58 multiplied by 14 multiplied by 9cm (without a handle); at present, no test platform specially aiming at the human-powered seawater desalination machine with the energy recovery function exists in the market, and the test requirements of the two desalination machines cannot be met simultaneously.
Disclosure of Invention
The patent provides a test platform and a test method for a handheld seawater desalination machine, which are used for solving the technical problems in the prior art.
The technical scheme adopted by the patent to solve the technical problems in the prior art is as follows:
a test platform for a handheld seawater desalination machine comprises a water chiller, a temperature control water tank, a test board and a control system;
the water chiller is used for cooling hot water in the temperature control water tank;
the temperature control water tank comprises a water tank body, a sodium chloride injection port, a stirring mechanism, a temperature control structure and a sensor for testing water temperature and conductivity are arranged on the water tank body, and the temperature control water tank can automatically realize the functions of temperature rise and temperature reduction at 5-70 ℃; a circulating waterway is connected between the temperature control water tank and the desalination machine and comprises a seawater inlet pipe, a fresh water production pipe and a concentrated water discharge pipe;
the test bench comprises a support table, a large tool clamp or a small tool clamp which can be disassembled is arranged on the support table, and a sliding table assembly which can be matched with any one of the two tool clamps is also arranged; the sliding table assembly comprises a sliding table, a supporting frame, a driving structure and a crank; the sliding table is fixed above the supporting table through the supporting frames with the same number on the left side and the right side, and a sliding way and a matched sliding block are arranged at the lower end of the sliding table; the driving structure comprises a pneumatic cylinder arranged on the sliding table; the end part of the piston rod of the pneumatic cylinder is fixed with the sliding block, and the tail end of the crank is rotationally connected with a pressing handle of the desalination machine; a tension and pressure sensor is arranged on the crank; an air pump matched with the pneumatic cylinder is arranged on the support table; the small tool clamp is suitable for a personal portable seawater desalination machine with a small axial length, and the large tool clamp is suitable for a multi-person handheld seawater desalination machine with a large axial length; the two types of desalination machines are driven by a set of driving structure, and the tests of two products can be completed by switching programs and replacing tools;
the screw rod is arranged between the slideways so as to drive the sliding block to reciprocate under the action of the driving structure, so that the pressing handle of the desalination machine is driven to press down and lift up through the crank, and the seawater desalination machine produces desalinated water in the process; a sensor for acquiring the moving data of the sliding block is arranged on the sliding table;
the control system is used for acquiring the test data of all the sensors and displaying and analyzing the test data.
Further, a cold water pipeline and a hot water pipeline are connected between the water chiller and the temperature control water tank; hot water in the temperature control water tank enters the water chiller through the hot water pipeline for cooling, the hot water is cooled in the water chiller through the independent water channel, and the cooled water returns to the temperature control water tank through the cold water pipeline.
Furthermore, the seawater inlet pipe is communicated with a front piston cavity of the desalination machine, and the fresh water production pipe is communicated with a fresh water chamber of the desalination machine so as to beat the filtered fresh water back into the temperature control water tank; the fresh water production pipe is provided with a clean water transfer bottle and a flow sensor, and the clean water transfer bottle is provided with a conductivity sensor so as to obtain the conductance of the produced water; the concentrated water discharge pipe is communicated with a low-pressure concentrated water discharge port of the desalting machine so that concentrated water also flows back into the temperature control water tank; the concentrated water discharge pipe is provided with a high-salinity water rotary bottle, and the high-salinity water rotary bottle is provided with a conductivity sensor so as to obtain the conductivity of the concentrated water.
Further, the temperature control structure is including establishing the direct heating coil in water tank body bottom, and direct heating coil passes through resistance heating's form and heats up to the water in the control by temperature change water tank.
Furthermore, two limiting blocks are arranged on the sliding table at intervals along the side surface of the sliding block; a position sensor shared by the personal portable seawater desalination machine type desalination machine and the multi-person hand-held seawater desalination machine type desalination machine and a plurality of photoelectric switches arranged at equal intervals are arranged between the limiting blocks.
Further, the small tool clamp comprises a small connecting seat arranged on the supporting table; the small connecting seat is provided with a fixed seat matched with the outer wall of the personal portable seawater desalination machine type desalination machine; one side of the front end of the fixing seat adjacent to the test board is provided with a positioning block for preventing the personal portable seawater desalination machine type desalination machine from moving along the axial direction, and one side of the tail end of the fixing seat is provided with a jacking tool.
Further, the top tool comprises a fixed block, a fixed groove is formed in the inner side of the fixed block, a rotating shaft parallel to the radial direction of the personal portable seawater desalination machine is arranged between the left side and the right side of the fixed groove, a rocker capable of rotating up and down is fixed on the rotating shaft, and the personal portable seawater desalination machine is positioned to the position of the locating block by rotating the rocker backwards.
Furthermore, a connecting screw rod is fixed on one side of the rotating shaft opposite to the personal portable seawater desalination machine type desalination machine, the end part of the connecting screw rod is in threaded connection with a cylindrical jacking block connected with the water outlet end of the personal portable seawater desalination machine type desalination machine, and a plurality of through holes for fixing a seawater inlet pipe, a fresh water production pipe and a concentrated water discharge pipe are uniformly and annularly distributed on two horizontal end surfaces of the jacking block.
Further, the large tool clamp comprises a large connecting seat; the bottom of the large connecting seat is provided with a plurality of positioning grooves for positioning the handheld seawater desalination machine type desalination machine for multiple people; in addition, a plurality of Z-shaped clamping plates are arranged on one axial side of the handheld seawater desalination machine for a plurality of people on the upper edge of the large connecting seat, the clamping plates are arranged above the desalination machine, and fastening bolts with bottoms contacted with the handheld seawater desalination machine for a plurality of people are arranged at the tops of the clamping plates.
Furthermore, the testing method of the universal testing platform of the handheld seawater desalination machine comprises the following steps:
s1, adding sodium chloride into the temperature control water tank, heating and stirring to enable the conductivity of the test water in the temperature control water tank to reach 45000-; when the water temperature is too high, the hot water pipeline is opened, and the water is cooled by a water cooler; when the water temperature is too low, the water is heated to a proper temperature through the direct heating coil;
s2, the driving structure drives the sliding block to move back and forth along the slide way, and a crank on the sliding block drives a pressing handle on the desalination machine to press down and lift up; when the pressing handle is pressed down quickly, negative pressure is formed in a front piston cavity of the desalination machine, and test water in the temperature control water tank enters the desalination machine through the seawater inlet pipe and is filtered;
s3, returning the desalinated and filtered fresh water and the discharged concentrated water to the temperature control water tank; when fresh water passes through the clear water rotary bottle, the sensor can measure the conductance of the produced water and transmit the conductance to the control system.
The patent has the advantages and positive effects that:
the invention can use the same test platform to test the handheld seawater desalination machines of different models, and the testable performance parameters comprise temperature, water quality, pressure, service life and the like; the method specifically comprises the following functions:
1) the temperature and the conductivity of the water quality are detected in an online detection mode, the temperature control water tank, the high-salinity transfer bottle and the clear water transfer bottle are respectively detected, and test data are simultaneously output on a control system interface;
2) the temperature control water tank can automatically adjust the temperature, so that the influence of the seawater temperature on the conductivity can be conveniently simulated, and the higher the seawater temperature is, the higher the water yield is, and the lower the desalination rate is;
3) the test bench utilizes a high-precision pneumatic cylinder to drive equipment to perform testing; the multi-line operation can be realized, and more than 5 desalting equipment can be tested simultaneously; in addition, the handheld clamp is replaceable, and the test of handheld desalination machines of different models can be met.
4) Performance parameter detection instrument: the test platform comprises: the temperature sensor is used for measuring and recording the temperature of the inlet water; the conductivity sensor is used for measuring and recording the quality of the inlet water and the produced water; the pull pressure sensor is used for measuring and recording the moment of the equipment during operation and converting the internal pressure of the handheld type; the service life of the equipment is detected by detecting the operation times of the pneumatic cylinder, the service life of a key part is detected, and the operation stability of the equipment is ensured.
5) The control system has the following functions: the man-machine interaction system changes the testing frequency in real time; the experimental data is recorded, and the change trend of the experimental result is displayed in real time in a curve chart form, so that the insufficient experiment can be analyzed; the overload protection system performs power-off protection when current, pressure, stroke and the like are overloaded, and can store data without losing.
Drawings
FIG. 1 is a schematic overall view of a test platform according to a preferred embodiment of the present invention;
FIG. 2 is a three-dimensional view of a test station in a preferred embodiment of the present invention;
FIG. 3 is a three-dimensional view of a slide table in a preferred embodiment of the present invention;
FIG. 4 is a three-dimensional view of a small tool holder in accordance with a preferred embodiment of the present invention;
FIG. 5 is a three-dimensional view of a large tooling fixture in accordance with a preferred embodiment of the present invention.
In the figure: 1. a water chiller; 11. a cold water line; 12. a hot water pipeline; 13. a water pump;
2. a temperature control water tank; 21. a water tank body; 22. a sodium chloride injection port; 23. a stirring mechanism; 24. a seawater inlet pipe; 25. a fresh water producing pipe; 26. a concentrated water discharge pipe; 27. turning the bottle in clear water; 28. rotating the bottle in the high-salinity water;
3. a test bench; 31. a sliding table assembly; 311. a sliding table; 312. a support frame; 313. a pneumatic cylinder; 313a, an air pump; 314. a slideway; 315. a slider; 316. a limiting block; 317. a crank; 318. a pull pressure sensor; 32. a small tooling fixture; 321. a small connecting seat; 322. a fixed seat; 323. positioning blocks; 324. a fixed block; 325. a rotating shaft; 326. a rocker; 327. connecting a screw rod; 328. a top block; 33. a large tooling fixture; 331. a large connecting seat; 332. clamping a plate; 333. fastening a bolt;
4. a control system; 41. a display screen; 5. a personal portable seawater desalination machine type desalination machine; 6. a plurality of people use the hand-held seawater desalination machine type desalination machine; 7. the handle is pressed.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is made to the following examples, which are set forth in the accompanying drawings and the description:
referring to fig. 1 to 5, in order to test parameters such as the water conductivity, the water flow, the pressing force, the concentrated water pressure and the like of the seawater desalination machine, the invention discloses a test platform for a handheld seawater desalination machine, which comprises a water chiller 1, a temperature control water tank 2, a test bench 3 and a control system 4.
The temperature control water tank 2 comprises a water tank body 21 arranged on a supporting seat; the upper end of the water tank body 21 is provided with a sodium chloride injection port 22 and a stirring mechanism 23; the sodium chloride is injected into the temperature control water tank 2 to simulate the seawater to enter the desalination machine; based on the characteristic of high salt content of seawater, a large amount of added sodium chloride is thoroughly stirred by a stirring mechanism 23 which penetrates through the bottom of the water tank body 21 so as to accelerate the dissolution of the added sodium chloride in the water tank; the sodium chloride was added to achieve a conductivity of 45000-. Since the water temperature has an influence on the conductivity of the seawater and the water production rate, the temperature in the temperature-controlled water tank 2 should be kept at about 25 ℃. In order to achieve the purpose, the bottom of the water tank body 21 is provided with a temperature control structure for controlling the temperature of the test water; the temperature control structure comprises a direct heating coil arranged at the bottom of the water tank body 21, and the direct heating coil heats water in the temperature control water tank 2 in a resistance heating mode; the water chiller 1 is used for cooling hot water in the temperature control water tank 2 in an air cooling mode and the like, and specifically, a cold water pipeline 11 and a hot water pipeline 12 are connected between the water chiller 1 and the temperature control water tank 2, and valves and water pumps 13 are arranged on the cold water pipeline 11 and the hot water pipeline 12; hot water in the temperature-controlled water tank 2 enters the water cooler 1 through the hot water pipeline 12 for cooling, the hot water is subjected to heat exchange such as air cooling in the water cooler 1 to realize indirect cooling, and the cooled water returns to the temperature-controlled water tank 2 through the cold water pipeline 11; because the water cooler 1 is internally cooled by the fan to the coiled hot water pipeline 12 in an independent and closed manner, the water quality in the temperature control water tank 2 cannot be influenced. The temperature control water tank 2 can automatically realize the functions of temperature rise and temperature reduction at 5-70 ℃, so that the influence of the seawater temperature on the conductivity can be conveniently simulated; experiments prove that: the higher the temperature of the seawater, the higher the water yield and the lower the desalination rate, which is (water inlet conductance-water yield conductance)/water inlet conductance x 100%. The water tank body 21 is also provided with a sensor capable of measuring the temperature and the conductivity of water for testing; the sensor is provided with a stainless steel needle which is inserted into the water tank body 21 to directly contact with water. Preferably, the capacity of the water tank body 21 is 40L, the bottom and the top are made of stainless steel, the middle of the water tank body is made of transparent materials, and the outer surface of the water tank body is provided with scale marks so as to facilitate observation.
A circulating water path is connected between the temperature control water tank 2 and the desalination machine, and comprises a seawater inlet pipe 24, a fresh water outlet pipe 25 and a concentrated water discharge pipe 26; the seawater inlet pipe 24 is communicated with a front piston cavity of the desalination machine, the fresh water product pipe 25 is communicated with a fresh water chamber of the desalination machine so as to beat the filtered fresh water back into the temperature control water tank 2, the fresh water product pipe 25 is provided with a clean water in-rotation bottle 27 and a flow sensor, and the clean water in-rotation bottle 27 is provided with a conductivity sensor so as to obtain the conductance of produced water; the concentrated water discharge pipe 26 is communicated with a low-pressure concentrated water discharge port of the desalination machine so that concentrated water also flows back into the temperature control water tank 2, and the concentrated water and fresh water are mixed in the temperature control water tank 2 so as to be consistent with seawater parameters before testing; the concentrated water discharge pipe 26 is provided with a high-salinity water rotary bottle 28, and the high-salinity water rotary bottle 28 is provided with a conductivity sensor so as to obtain the conductivity of the concentrated water; the data measured by all the sensors on the temperature control water tank 2 are fed back to the control system 4.
The test bench 3 comprises a support bench, wherein a large tool clamp 33 or a small tool clamp 32 which can be replaced is arranged on the support bench, and a sliding table 311 assembly 31 which can be matched with any one of the two tool clamps is also arranged on the support bench; wherein the small and medium tool clamps 32 are suitable for the personal portable seawater desalination machine type desalination machine 5 with small axial length, and the large tool clamp 33 is suitable for the multi-person hand-held seawater desalination machine type desalination machine 6 with large axial length; the sliding table assembly 31 comprises a sliding table 311, a support frame 312, a driving structure and a crank 317; the driving structure comprises a pneumatic cylinder 313 arranged on the sliding table 311; the pneumatic cylinder is good at reciprocating linear motion, stable speed control can be simply realized by only adjusting one-way throttle valves arranged on two sides of the pneumatic cylinder, and the pneumatic cylinder becomes the biggest characteristic and advantage of a cylinder driving system. An air pump 313a matched with the pneumatic cylinder is arranged on the support platform; the sliding table 311 is fixed above the supporting table through the same number of supporting frames 312 on the left side and the right side, a slide way 314 and a matched slide block 315 are arranged at the lower end of the sliding table 311, the end part of a piston rod of the pneumatic cylinder is fixed with the slide block, and the tail end of a crank 317 is rotationally connected with a pressing handle 7 of the desalination machine; therefore, when the piston rod of the pneumatic cylinder drives the sliding block 315 to reciprocate, the pressing handle 7 of the desalination machine can be driven to press down and lift up through the crank 317, and the seawater desalination machine produces desalinated water in the process; the number of times of operation, the operating cycle, the interval of pneumatic cylinder 313 can all feed back to monitored control system and can show on line in this patent, can carry out equipment life-span through the number of times of operation that detects pneumatic cylinder 313 and detect, detects key position life-span, ensures equipment operating stability.
Two limiting blocks 316 are arranged on the sliding table 311 at intervals along the side surface of the sliding block 315 in motion; a position sensor shared by the personal portable seawater desalination machine type desalination machine 5 and the multi-person handheld seawater desalination machine type desalination machine 6 and 3-5 photoelectric switches arranged at equal intervals are arranged between the limiting blocks 316, the moving distance of the sliding block 315 can be limited through the arrangement of the position sensor, the photoelectric switches are in signal connection with the position sensor and are driven by a driver to rotate reversely after receiving information that the sliding block 315 of the position sensor reaches a set position, the buffering effect is achieved, and meanwhile, the next stroke can be opened on the pipe wall; one end of the sliding block 315 is connected with a crank 317, and the crank 317 is fixed with a pressing handle 7 of the seawater desalination machine; the crank 317 is provided with a tension and pressure sensor 318 for measuring the tension and pressure of the crank 317, which is equivalent to measuring the numerical value of the pressing handle 7 on the seawater desalination machine, and the measured numerical value is transmitted to the control system 4.
The small tool clamp 32 comprises a small connecting seat 321 arranged on the supporting platform; the small connecting seat 321 is provided with a fixed seat 322 matched with the outer wall of the personal portable seawater desalination machine type desalination machine 5; a positioning block 323 for preventing the personal portable seawater desalination machine type desalination machine 5 from moving along the axial direction is arranged at one side of the front end of the fixed seat 322, which is adjacent to the test board 3, and a jacking tool is arranged at one side of the tail end of the fixed seat 322; the top tool comprises a fixed block 324, a fixed groove is arranged on the inner side of the fixed block 324, a rotating shaft 325 parallel to the radial direction of the personal portable seawater desalination machine type desalination machine 5 is arranged between the left side and the right side of the fixed groove, a rocker 326 capable of rotating up and down is fixed on the rotating shaft 325, and the personal portable seawater desalination machine type desalination machine 5 is positioned to the positioning block 323 by rotating the rocker 326 backwards; a connecting screw 327 is fixed on one side of the rotating shaft 325 opposite to the personal portable seawater desalination machine type desalination machine 5, the end part of the connecting screw 327 is in threaded connection with a cylindrical top block 328 connected with the water outlet end of the personal portable seawater desalination machine type desalination machine 5, and a plurality of through holes for fixing the seawater inlet pipe 24, the fresh water outlet pipe 25 and the concentrated water discharge pipe 26 are uniformly and annularly distributed on two horizontal end faces of the top block 328.
The large tool clamp 33 comprises a large connecting seat 331; the bottom of the large connecting seat 331 is provided with a plurality of positioning grooves for positioning the handheld seawater desalination machine type desalination machine 6 for multiple persons, in addition, a plurality of Z-shaped clamping plates 332 are arranged on one side of the large connecting seat 331 along the axial direction of the handheld seawater desalination machine type desalination machine 6 for multiple persons, the clamping plates 332 are arranged above the desalination machine, and the top of the clamping plates 332 is provided with fastening bolts 333 the bottoms of which are in contact with the handheld seawater desalination machine type desalination machine 6 for multiple persons.
The large connecting seat 331 and the small connecting seat 321 are detachably connected to each other on the support platform for replacement. The universal design enables two types of desalination machines to be driven by one set of driving structure, and tests of two products can be completed by switching programs and replacing tools.
The control system 4 is used for acquiring data of all sensors, displaying and analyzing the data, and specifically comprises a control box and a console; the control box is internally integrated with electric elements such as a power supply system of the platform, a servo motor driver, a motion control card, an adapter plate and the like; the console is designed according to human engineering and comprises buttons for starting, stopping, scramming, a testing station 123, an electric conductivity and a display screen 41, and all data measured by the platform can be displayed on the display screen 41, so that testing parameters can be changed in real time, an experimental result is recorded, the experimental result is displayed in a curve graph mode, and the insufficiency of an analysis experiment is facilitated. The control system 4 includes an overload protection system that protects against power outages due to overload, such as current, pressure, and stroke, and preserves data from loss.
The invention also discloses a test method of the test platform, which specifically comprises the following steps:
s1, adding sodium chloride into the temperature control water tank 2, heating and stirring to enable the electrical conductivity of the test water in the temperature control water tank 2 to reach 45000-; when the water temperature is too high, opening the hot water pipeline 12 and cooling the water by using the water cooler 1; when the water temperature is too low, the water is heated to a proper temperature through the direct heating coil;
s2, the driving structure drives the sliding block 315 to move back and forth along the slide way 314, and the crank 317 on the sliding block 315 drives the pressing handle 7 on the desalination machine to press down and lift up; when the pressing handle 7 is pressed down quickly, negative pressure is formed in a front piston cavity of the desalination machine, and test water in the temperature control water tank 2 enters the desalination machine through the seawater inlet pipe 24 and is filtered;
s3, the desalinated and filtered fresh water and the discharged concentrated water return to the temperature control water tank 2; when fresh water passes through the clean water turn bottle 27, the sensor can measure the conductance of the produced water and transmit the conductance to the control system 4.
Table 1 shows the data measured by the test platform for the multi-person hand-held seawater desalination machine:
table 1 test data of the hand-held seawater desalination plant for a plurality of persons measured by the test platform
Figure BDA0002928446120000071
The foregoing is illustrative of the preferred embodiments of this patent and is not to be construed as limiting in any way, and all simple modifications, equivalent alterations and modifications to the above embodiments based on the technical spirit of this patent are intended to be included within the scope of the present patent disclosure.

Claims (10)

1. A test platform for a hand-held seawater desalination machine, characterized in that: the system comprises a water cooler, a temperature control water tank, a test board and a control system;
the water chiller is used for cooling hot water in the temperature control water tank;
the temperature control water tank comprises a water tank body, a sodium chloride injection port, a stirring mechanism, a temperature control structure and a sensor for testing water temperature and conductivity are arranged on the water tank body, and the temperature control water tank can automatically realize the functions of temperature rise and temperature reduction at 5-70 ℃; a circulating waterway is connected between the temperature control water tank and the desalination machine and comprises a seawater inlet pipe, a fresh water production pipe and a concentrated water discharge pipe;
the test bench comprises a support table, a large tool clamp or a small tool clamp which can be disassembled is arranged on the support table, and a sliding table assembly which can be matched with any one of the two tool clamps is also arranged; the sliding table assembly comprises a sliding table, a supporting frame, a driving structure and a crank; the sliding table is fixed above the supporting table through the supporting frames with the same number on the left side and the right side, and a sliding way and a matched sliding block are arranged at the lower end of the sliding table; the driving structure comprises a pneumatic cylinder arranged on the sliding table; the end part of the piston rod of the pneumatic cylinder is fixed with the sliding block, and the tail end of the crank is rotationally connected with a pressing handle of the desalination machine; a tension and pressure sensor is arranged on the crank; an air pump matched with the pneumatic cylinder is arranged on the support table; the small tool clamp is suitable for a personal portable seawater desalination machine with a small axial length, and the large tool clamp is suitable for a multi-person handheld seawater desalination machine with a large axial length; the two types of desalination machines are driven by a set of driving structure, and the tests of two products can be completed by switching programs and replacing tools;
the screw rod is arranged between the slideways so as to drive the sliding block to reciprocate under the action of the driving structure, so that the pressing handle of the desalination machine is driven to press down and lift up through the crank, and the seawater desalination machine produces desalinated water in the process; a sensor for acquiring the moving data of the sliding block is arranged on the sliding table;
the control system is used for acquiring the test data of all the sensors and displaying and analyzing the test data.
2. The test platform for a hand-held seawater desalination machine of claim 1, wherein: a cold water pipeline and a hot water pipeline are connected between the water cooler and the temperature control water tank; hot water in the temperature control water tank enters the water chiller through the hot water pipeline for cooling, the hot water is cooled in the water chiller through the independent water channel, and the cooled water returns to the temperature control water tank through the cold water pipeline.
3. The test platform for a hand-held seawater desalination machine of claim 1, wherein: the seawater inlet pipe is communicated with a front piston cavity of the desalination machine, and the fresh water production pipe is communicated with a fresh water chamber of the desalination machine so as to beat the filtered fresh water back into the temperature control water tank; the fresh water production pipe is provided with a clean water transfer bottle and a flow sensor, and the clean water transfer bottle is provided with a conductivity sensor so as to obtain the conductance of the produced water; the concentrated water discharge pipe is communicated with a low-pressure concentrated water discharge port of the desalting machine so that concentrated water also flows back into the temperature control water tank; the concentrated water discharge pipe is provided with a high-salinity water rotary bottle, and the high-salinity water rotary bottle is provided with a conductivity sensor so as to obtain the conductivity of the concentrated water.
4. The test platform for a hand-held seawater desalination machine of claim 1, wherein: the temperature control structure comprises a direct heating coil arranged at the bottom of the water tank body, and the direct heating coil heats water in the temperature control water tank in a resistance heating mode.
5. The test platform for a hand-held seawater desalination machine of claim 1, wherein: two limiting blocks are arranged on the side surface of the sliding table moving along the sliding block at a certain distance; a position sensor shared by the personal portable seawater desalination machine type desalination machine and the multi-person hand-held seawater desalination machine type desalination machine and a plurality of photoelectric switches arranged at equal intervals are arranged between the limiting blocks.
6. The test platform for a hand-held seawater desalination machine of claim 1, wherein: the small tool clamp comprises a small connecting seat arranged on the supporting platform; the small connecting seat is provided with a fixed seat matched with the outer wall of the personal portable seawater desalination machine type desalination machine; one side of the front end of the fixing seat adjacent to the test board is provided with a positioning block for preventing the personal portable seawater desalination machine type desalination machine from moving along the axial direction, and one side of the tail end of the fixing seat is provided with a jacking tool.
7. The test platform for a hand-held seawater desalination machine of claim 1, wherein: the top tool comprises a fixed block, a fixed groove is arranged on the inner side of the fixed block, a rotating shaft parallel to the radial direction of the personal portable seawater desalination machine type desalination machine is arranged between the left side and the right side of the fixed groove, a rocker capable of rotating up and down is fixed on the rotating shaft, and the personal portable seawater desalination machine type desalination machine is positioned to the position of the positioning block by rotating the rocker backwards.
8. The test platform for a hand-held seawater desalination machine of claim 1, wherein: a connecting screw rod is fixed on one side of the rotating shaft opposite to the personal portable seawater desalination machine type desalination machine, the end part of the connecting screw rod is in threaded connection with a cylindrical jacking block connected with the water outlet end of the personal portable seawater desalination machine type desalination machine, and a plurality of through holes for fixing a seawater inlet pipe, a fresh water production pipe and a concentrated water discharge pipe are uniformly and annularly distributed on two horizontal end surfaces of the jacking block.
9. The test platform for a hand-held seawater desalination machine of claim 1, wherein: the large tool clamp comprises a large connecting seat; the bottom of the large connecting seat is provided with a plurality of positioning grooves for positioning the handheld seawater desalination machine type desalination machine for multiple people; in addition, a plurality of Z-shaped clamping plates are arranged on one axial side of the handheld seawater desalination machine for a plurality of people on the upper edge of the large connecting seat, the clamping plates are arranged above the desalination machine, and fastening bolts with bottoms contacted with the handheld seawater desalination machine for a plurality of people are arranged at the tops of the clamping plates.
10. The method for testing the test platform for the handheld seawater desalination machine as claimed in any one of claims 1 to 9, comprising the steps of:
s1, adding sodium chloride into the temperature control water tank, heating and stirring to enable the conductivity of the test water in the temperature control water tank to reach 45000-; when the water temperature is too high, the hot water pipeline is opened, and the water is cooled by a water cooler; when the water temperature is too low, the water is heated to a proper temperature through the direct heating coil;
s2, the driving structure drives the sliding block to move back and forth along the slide way, and a crank on the sliding block drives a pressing handle on the desalination machine to press down and lift up; when the pressing handle is pressed down quickly, negative pressure is formed in a front piston cavity of the desalination machine, and test water in the temperature control water tank enters the desalination machine through the seawater inlet pipe and is filtered;
s3, returning the desalinated and filtered fresh water and the discharged concentrated water to the temperature control water tank; when fresh water passes through the clear water rotary bottle, the sensor can measure the conductance of the produced water and transmit the conductance to the control system.
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