CN112964488A - Modularized universal test platform and test method for handheld seawater desalination machine - Google Patents

Abstract

The invention relates to the technical field of seawater desalination equipment testing, and particularly discloses a modular universal testing platform and a testing method for a handheld seawater desalination machine, wherein the modular universal testing platform comprises a cooling module, a temperature control module, a plurality of testing modules and a control module; the temperature control module is used for providing test water with certain temperature and conductivity for the whole test platform; the temperature reduction module is used for reducing the temperature of the test water in the temperature control module; the number of the test modules comprises a plurality of test units which are connected in parallel, and all the test modules share one cooling module, one temperature control module and one control module; each test monomer can drive the desalination machine to carry out seawater desalination test by using a high-precision driving structure; the control module comprises a control system for receiving, controlling and displaying the test data of the whole test platform. 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

Modularized universal 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 modular universal 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 (with a handle); the length, width and height of the big hand are 58 multiplied by 14 multiplied by 9cm (without a handle); at present, a test platform specially aiming at a human-driven seawater desalination machine with an energy recovery function does not exist in the market, and the test requirements of the two desalination machines cannot be met at the same time; in addition, in order to improve the experimental precision and efficiency, a plurality of handheld seawater desalination machines may be tested simultaneously, so a universal test platform with a modularized integrated form is urgently needed.

Disclosure of Invention

In order to solve the technical problems in the prior art, the patent provides a modularized universal test platform and a test method for a handheld seawater desalination machine. .

The technical scheme adopted by the patent to solve the technical problems in the prior art is as follows:

a modularized universal test platform for a handheld seawater desalination machine comprises a cooling module, a temperature control module, a plurality of test modules and a control module; the temperature control module is used for providing test water with certain temperature and conductivity for the whole test platform; the temperature reduction module is used for reducing the temperature of the test water in the temperature control module; a cold water pipeline and a hot water pipeline are connected between the temperature control module and the temperature reduction module, hot water in the temperature control module enters the temperature reduction module through the hot water pipeline for cooling, the hot water is reduced in the temperature reduction module, and the cooled water returns to the temperature control module through the cold water pipeline; the number of the test modules comprises a plurality of test units which are connected in parallel, and all the test modules share one cooling module, one temperature control module and one control module; each test monomer can drive the desalination machine to carry out seawater desalination test by using a high-precision driving structure; a set of circulating water path is connected between the temperature control module and each testing monomer, and the circulating water path comprises a seawater inlet pipe, a fresh water production pipe and a concentrated water discharge pipe; 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 module; the performance parameter detecting instrument is arranged on the temperature control module and the testing module; the performance parameter tester comprises a temperature sensor, a conductivity sensor and a pull pressure sensor, wherein the temperature sensor and the conductivity sensor are arranged on the temperature control module and the circulating water path; the control module comprises a control system for receiving, controlling and displaying the test data of the whole test platform.

Further, the cooling module is a water chiller; the temperature control module is a temperature control water tank; the test module is a test board;

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 0-70 ℃; 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 sliding block structure; 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; the crank sliding block structure comprises a sliding way fixed at the lower end of the sliding table and a matched sliding block, one end of the sliding block is connected with a crank, and the crank is fixed with a pressing handle of the seawater desalination machine; a tension and pressure sensor is arranged on the crank; the small tool clamp is suitable for a small-shaft-length personal portable seawater desalination machine, and the large tool clamp is suitable for a large-shaft-length multi-person handheld seawater desalination machine; 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; the sliding table is provided with a sensor for acquiring the moving data of the sliding block.

Furthermore, a clear water transfer bottle and a flow sensor are arranged on the fresh water product water pipe, and a temperature probe and a conductivity sensor are arranged on the clear water transfer bottle so as to obtain the temperature and the conductivity of produced water; the concentrated water discharge pipe is provided with a high-salinity water rotary bottle which is provided with a temperature probe and a conductivity sensor so as to obtain the temperature and 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 and the multi-person hand-held seawater 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; 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 from moving along the axial direction, and one side of the tail end of the fixing seat is provided with a jacking tool.

Furthermore, 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 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 positioning 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, 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, 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 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 large connecting seat, the clamping plates are arranged above the desalination machine, and fastening bolts with bottoms contacting 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 fresh water filtered by the desalination machine 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 drives the equipment to test by using a high-precision electric cylinder; 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 electric 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. an electric cylinder; 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; 6. a plurality of people use the hand-held seawater desalination machines; 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. 1-5, in order to test parameters such as the water production conductivity, the water production flow, the pressing force, the concentrated water pressure and the like of a plurality of seawater desalination machines, the invention discloses a modularized universal test platform for a handheld seawater desalination machine, which comprises a cooling module, a temperature control module, a plurality of test modules and a control module; the temperature control module is used for providing test water with certain temperature and conductivity for the whole test platform, and the temperature control module can automatically adjust the temperature so as to simulate the influence of the seawater temperature on the conductivity; the temperature reduction module is used for reducing the temperature of the test water in the temperature control module; specifically, a cold water pipeline and a hot water pipeline are connected between the temperature control module and the temperature reduction module, hot water in the temperature control module enters the temperature reduction module through the hot water pipeline for cooling, the hot water is cooled in the temperature reduction module, and the cooled water returns to the temperature control module through the cold water pipeline; the number of the test modules comprises a plurality of test units which are connected in parallel, and all the test modules share one cooling module, one temperature control module and one control module; each test monomer can drive the desalination machine to carry out seawater desalination test by using a high-precision driving structure; a set of circulating water path is connected between the temperature control module and each testing monomer, and the circulating water path comprises a seawater inlet pipe, a fresh water production pipe and a concentrated water discharge pipe; 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 module; the performance parameter detecting instrument is arranged on the temperature control module and the testing module; the performance parameter tester includes: the temperature sensor and the conductivity sensor are arranged on the temperature control module and the circulating water path, and the pull pressure sensor is arranged on the test monomer; the control module is used for receiving, controlling and displaying the test data of the whole test platform.

Specifically, the cooling module is a water chiller 1; the temperature control module is a temperature control water tank 2; the test module is a test bench 3; the control module is 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 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 pipe 25 is provided with a clean water transfer bottle 27 and a flow sensor, and the clean water transfer bottle 27 is provided with a temperature probe and a conductivity sensor so as to obtain the temperature and the conductivity of the 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 also provided with a temperature probe and a conductivity sensor so as to obtain the temperature and 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 5 with small axial length, and the large tool clamp 33 is suitable for the handheld seawater desalination machine 6 with large axial length for multiple persons; the sliding table 311 assembly 31 comprises a sliding table 311, a support frame 312, a driving structure and a crank 317 and sliding block 315 structure; the driving structure comprises an electric cylinder 313 arranged on one side of the sliding table 311; the electric cylinder 313 is a modular product in which a servo motor and a lead screw are integrally designed, and converts the rotary motion of the servo motor into linear motion; the TOYO nonstandard electric cylinder 313 is selected in the test platform, the service life can reach more than 2000 ten thousand times, and an Anchuan 400W servo motor and a driver are adopted. 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; the crank 317 slide block 315 structurally comprises slide ways 314 fixed at the lower end of the sliding table 311 and matched slide blocks 315, the lead screw is arranged between the slide ways 314 so as to drive the slide blocks 315 to reciprocate, and therefore the crank 317 drives a pressing handle 7 of the desalination machine to press down and lift up, and the seawater desalination machine produces desalinated water in the process; the electric cylinder 313 has the advantages of accurate speed control, accurate position control and accurate thrust control; the operation number of times, the operating cycle, the interval of electronic jar 313 can all feed back to monitored control system and can show on line in this patent, can carry out equipment life-span detection through the operation number of times that detects electronic jar 313, 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 5 and the handheld seawater desalination machines 6 for multiple persons 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 5; a positioning block 323 for preventing the personal portable seawater 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 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 5 is positioned to the position of 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 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 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 surfaces 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 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 6 for multiple persons, the clamping plates 332 are arranged above the desalination machine, and the top of each clamping plate 332 is provided with a fastening bolt 333 with the bottom contacting with the handheld seawater 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 testing method of the universal testing platform for the handheld seawater desalination machine, 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, returning the fresh water filtered by the desalination machine and the discharged concentrated water 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

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 general test platform of modularization for hand-held type seawater desalination machine which characterized in that: the device comprises a cooling module, a temperature control module, a plurality of test modules and a control module; the temperature control module is used for providing test water with certain temperature and conductivity for the whole test platform; the temperature reduction module is used for reducing the temperature of the test water in the temperature control module; a cold water pipeline and a hot water pipeline are connected between the temperature control module and the temperature reduction module, hot water in the temperature control module enters the temperature reduction module through the hot water pipeline for cooling, the hot water is reduced in the temperature reduction module, and the cooled water returns to the temperature control module through the cold water pipeline; the number of the test modules comprises a plurality of test units which are connected in parallel, and all the test modules share one cooling module, one temperature control module and one control module; each test monomer can drive the desalination machine to carry out seawater desalination test by using a high-precision driving structure; a set of circulating water path is connected between the temperature control module and each testing monomer, and the circulating water path comprises a seawater inlet pipe, a fresh water production pipe and a concentrated water discharge pipe; 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 module; the performance parameter detecting instrument is arranged on the temperature control module and the testing module; the performance parameter tester comprises a temperature sensor, a conductivity sensor and a pull pressure sensor, wherein the temperature sensor and the conductivity sensor are arranged on the temperature control module and the circulating water path; the control module comprises a control system for receiving, controlling and displaying the test data of the whole test platform.

2. The modular universal test platform for a hand-held seawater desalination machine of claim 1, wherein: the cooling module is a water chiller; the temperature control module is a temperature control water tank; the test module is a test board;

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 0-70 ℃; 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 sliding block structure; 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; the crank sliding block structure comprises a sliding way fixed at the lower end of the sliding table and a matched sliding block, one end of the sliding block is connected with a crank, and the crank is fixed with a pressing handle of the seawater desalination machine; a tension and pressure sensor is arranged on the crank; the small tool clamp is suitable for a small-shaft-length personal portable seawater desalination machine, and the large tool clamp is suitable for a large-shaft-length multi-person handheld seawater desalination machine; 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; the sliding table is provided with a sensor for acquiring the moving data of the sliding block.

3. The modular universal test platform for a hand-held seawater desalination machine of claim 1, wherein: the fresh water production pipe is provided with a fresh water transfer bottle and a flow sensor, and the fresh water transfer bottle is provided with a temperature probe and a conductivity sensor so as to obtain the temperature and the conductivity of produced water; the concentrated water discharge pipe is provided with a high-salinity water rotary bottle which is provided with a temperature probe and a conductivity sensor so as to obtain the temperature and the conductivity of the concentrated water.

4. The modular universal test platform for a hand-held seawater desalination machine of claim 2, 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 modular universal test platform for a hand-held seawater desalination machine of claim 2, 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 and the multi-person hand-held seawater desalination machine and a plurality of photoelectric switches arranged at equal intervals are arranged between the limiting blocks.

6. The modular universal test platform for a hand-held seawater desalination machine of claim 2, 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; 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 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 modular universal test platform for a hand-held seawater desalination machine of claim 2, 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 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 positioning block by rotating the rocker backwards.

8. The modular universal test platform for a hand-held seawater desalination machine of claim 2, wherein: a connecting screw rod is fixed on one side of the rotating shaft opposite to the personal portable seawater 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, 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 modular universal test platform for a hand-held seawater desalination machine of claim 2, 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 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 large connecting seat, the clamping plates are arranged above the desalination machine, and fastening bolts with bottoms contacting 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 modular universal test platform for the hand-held seawater desalination machine as claimed in any one of claims 2 to 9, comprising 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 fresh water filtered by the desalination machine 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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