Microwave water sample evaporation - pioneering in China, rapid evaporation and concentration of water samples

Execution standard: GB 5959.6-2008 (Safety Specification for Heating of Industrial Microwave Equipment)

Reference standard: GB/T5750.13-2006 (Methods for Testing Drinking Water - Radioactive Index)

Product Introduction:

The SPT-ZH2 dual channel water sample alpha beta microwave evaporator utilizes the characteristic of internal heating of microwave energy molecules to achieve rapid concentration and enrichment of water samples, revolutionizing traditional electric heating plate heating and muffle furnace ashing. Suitable for the detection of alpha, beta, and gamma radioactive indicators in environmental samples of drinking water, tap water, river water, sewage, mineral water, and atmospheric sediments in various industries.

Widely used in nuclear and radiation safety monitoring departments, disease control centers, occupational disease prevention and control institutes, entry-exit inspection and quarantine, nuclear industry research institutions, nuclear geology, nuclear power plants, nuclear science related research institutions, marine testing, water companies, water companies, third-party testing companies and other related fields.

Performance characteristics:

1. Microwave heating: greatly reduces the evaporation and concentration time of water samples

2. Infrared non-contact temperature measurement: adjustable digital display, no pollution

3. Two or more evaporation working chambers can be expanded: an independent furnace chamber, without considering interference between samples, with a furnace chamber volume of 18L, which can accommodate various water sample evaporation dishes (with capacities of 1.5L/2.5L/3.5L, depending on local water sample standards). At the same time, multiple evaporation furnace chambers can be expanded arbitrarily, and any furnace chamber or any combination of furnace chambers can be started

4. Durability: The device is coated with multiple layers of Teflon inside, which is corrosion-resistant and heat-resistant

5. Microwave feeding location: Side of microwave resonant cavity

6. Microwave anti leakage suppressor: inductive suppressor

7. Working hours: Able to work continuously for 24 hours

8. Microwave leakage:<5mw/cm2 (national standard)

9. Equipment composition: mainly composed of microwave source, fan, infrared temperature measurement system, water sample evaporating dish bracket, electrical control system and other accessories.

10. The fan speed is 2800 ± 50rmp, the fan noise is not greater than 60dB (at a distance of 1 meter), the fan starts for 3 seconds, and the cumulative operating life is not less than 8000 hours

11. The microwave resonant cavity is mainly made of stainless steel 304 welded together and sprayed with multiple layers of PTFE

12. The microwave source mainly consists of a magnetron, a high-voltage transformer, a high-voltage rectifier circuit, a cooling fan, and an overcurrent protection device

13. Infrared non-contact temperature measurement is used to avoid contaminating the sample and is linked with the temperature control system to ensure real-time evaporation of the water sample in a slightly boiling state

14. The control system consists of temperature control instruments, time relays, and push switches, and can be optionally controlled by PLC programming

15. A comprehensive independent control and protection circuit ensures that the use of each component does not interfere with each other

16. Adopt a temperature controller to protect the core components of the microwave source and extend its service life

17. The design and installation of the equipment generally consider the requirements of safety, stability, reliability, hygiene, ease of operation, and maintenance

18. Adopting choke groove (also known as anti groove) design technology, based on the principle of transmission line terminal short-circuit impedance transformation, a short-circuit waveguide (choke groove) is placed around the furnace door, and the distance between its slot and the short road surface in the groove is 1/4K (K is the microwave wavelength of 120mm). The high impedance at the furnace door is blocked, and the microwave inside the furnace cavity cannot escape from the door gap. The door latch electrical control design uses triple lock safety protection technology requirements that comply with the UL923 standard in the United States to provide users with a safe operating environment. Internally equipped with a safety locking mechanism that can automatically stop the operation of the instrument in case of unexpected situations to prevent microwave leakage.

19. The appearance size is moderate, it can be placed in a standard fume hood, and there is no need to connect an exhaust duct. Adding acid will not emit any odor indoors

20. A single set of instruments can be split into portable instruments for emergency or on-site testing

Product Parameters:

1. Power supply: 220V ± 10V or 380V ± 10V, 50Hz ± 1Hz

2. Microwave power: 1.6KW (add 0.8KW for each extended combination)

3. Overall power: 2KW

4. Heating method: Microwave heating

5. Two or more evaporation working chambers can be expanded: an independent furnace chamber, without considering interference between samples, with a furnace chamber volume of 18L, which can accommodate various water sample evaporation dishes (with capacities of 1.5L/2.5L/3.5L, depending on local water sample standards). At the same time, multiple evaporation furnace chambers can be expanded arbitrarily, any furnace chamber or any combination of furnace chambers can be started, and it comes with acid purging function

6. Temperature measurement system: Infrared non-contact temperature measurement, working temperature of 0-100 ℃, temperature measurement accuracy of ± 1 ℃. Infrared non-contact temperature measurement avoids sample contamination and is linked with the temperature control system to ensure real-time evaporation of water samples in a micro boiling state

7. Furnace cavity exhaust system: The equipment cavity is sprayed with multiple layers of Teflon, which is corrosion-resistant and high-temperature resistant. It is equipped with a centrifugal fan with a speed of 2800 ± 50rmp, a fan noise not exceeding 60dB (1 meter away), a fan start-up time of 3 seconds, and a cumulative operating life of not less than 8000 hours

8. Storage system: High speed ferroelectric storage, capable of storing up to 800 pieces of data.

9. Measurement mode: 10 different measurement modes can be customized, and each measurement mode can set different temperatures and heating times.

10. Resonant cavity material: stainless steel, sprayed with multiple layers of Teflon, equipped with microwave specific lighting and perspective window, which can see the sample in the cavity in real time

11. The appearance size is moderate and can be placed in a standard fume hood without the need for exhaust ducts. It emits no odor indoors when added with acid

12. System control: PLC intelligent control, split type control panel, with only one wire connection between the panel and the instrument, convenient for expanding and combining the whole machine

13. A single set of instruments can be split into portable instruments for emergency or on-site testing, and can be equipped with a portable instrument specific aviation case. The instruments come with handles, which can be easily lifted by one person to avoid delays in use. At the same time, they can be placed in separate rooms and freely adjusted

14. Equipped with PLC and button dual-mode control, it can be controlled in any mode

15. Multiple anti leakage structures on the door body, power off when opening the door, protecting your safety

16. Microwave evaporation oven cavity size: 300 * 300 * 190mm (width * depth * height)

17. Single set machine size: Machine size: 550 * 450 * 350mm (width * depth * height)

18. External accessories of the host: 2 sets of 1.5L/2.5L/3.5L specially designed water sample evaporating dishes, 4 sets of 70ML ashing quartz crucibles, 1 set of high-temperature gloves, and 1 set of graduated weighing cups