1.1 It is applicable to the explosion and hydrostatic pressure multi-purpose test of portable water-based, dry powder and clean gas fire extinguishers.
1.2 It is applicable to the hydrostaticpressure test, expansion rate, cylinder burst test and pressure cycling test of 1-12kg and 2L-9L portable fire extinguishers.
1.3 It is applicable to the hydrostatic pressure strength test and hydrostatic pressure burst test of portable carbon dioxide fire extinguisher with the specification of 7kg and the burst pressure not exceeding 25MPa.
2. Compliance with standards:
2.1 Meet the requirements of section 7.8.4 of GB4351.1-2005 portable fire extinguisher part I: performance and structure requirements.
3. Main features:
3.1 Computer automatic control, automatic acquisition of test data, and full process recording of test data, flexible interface operation, automatic generation of perfect format report, accurate pressure control, the test uses the special development software LabView of NI company equipment, the sensor has calibration interface, PLC Carry out control to realize high efficiency and automation of burst and hydraulic test; work stably with complete accessories.
3.2 The front door opening structure of the operation platform of the water pressure test chamber is convenient for other fire extinguishers to be installed on the operation position, and the operation is convenient. The transparent protective cover + stainless steel protective paint plate are used, and the test process is clear at a glance; the supporting stainless steel wire drawing operation platform is durable, practical and beautiful.
3.3 Connection mode: high voltage soft connection + quick connector is adopted for connection.
3.4 Boosting system: for automatic boosting control, manual operation can be carried out and multiple products can be tested at the same time. The pressure test bench has two test interfaces, each of which has a station control valve. The material is stainless steel protective orifice with plexiglass.
3.5 Copper, stainless steel and other anti-corrosion and anti rust materials shall be used for system air pipe fittings.
3.6 Safety measures:
3.6.1 The high-pressure system adopts double insurance precautions, that is, the pressure transmitter controls the hydrostatic pressure, and the electric contact pressure gauge controls the maximum hydrostatic pressure.
3.6.2 It is made of high-quality steel plate and treated with electrostatic paint on the surface to ensure the safety of personnel. The part that may catch water in the test is made of stainless steel and protected by plastic spraying on the surface.
3.7 High pressure pump (GermanVano) is adopted as the core component to ensure its durability.
3.8 The overall design is reasonable and the maintenance is convenient and fast. Automatic constant pressure, slight leakage automatic supplement constant pressure. High pressure pipeline is made in high quality, well durable.
4.7 Frequency modulation range of frequency converter: 0-50Hz
4.8 Number of withstand voltage control stations: two test interfaces of the withstand voltage operation platform; in the whole sealed and observable space.
4.10 Test medium: room temperature water (recycled, with filter device), water temperature not less than 5 ℃;
4.11 Number of cycles: 0 ~ 999999, set arbitrarily;
4.12 Power supply: AC380V, power: 7.5kW;
4.13 Volume and size of main engine (for reference only): length 1950 x width 850mm x height 1300mm weight: about 330kg;
4.14 Type of test piece: simple fire extinguisher, portable fire extinguisher;
4.15 Computer: 1 set, software: 1 set.
5. Instrument structure
5.1 Instrument composition: it is composed of hydrostatic test section and computer operation control section.
5.2 Computer control part:
5.2.1 The system is controlled by automatic boosting and can also be operated manually. The hydraulic test chamber has two test interfaces, each of which has a station control valve. The system can test multiple products at the same time, and the box body is the front upper door visual pressure operation platform.
5.2.2 Safety measures: the high-pressure system adopts double safety precautions, that is, the pressure transmitter controls the water pressure, and the electric contact pressure gauge controls the maximum water pressure. If there is failure on the one hand, it can also ensure the safety of test personnel and equipmenton the other hand. The high pressure pipeline is made of several times of pressure resistance capacity, durable.
5.2.3 The overall design is reasonable and the maintenance is convenient and fast;
5.2.4 The test pressure is controlled accurately and the error of stabilized pressure is far superior to the national standard.
5.2.5 Material: it is made of high-quality steel plate, with electrostatic paint treatment on the surface, durable and practical, beautiful and generous.
5.2.6 The test is automatically controlled by the computer, and the test data is automatically recorded in the whole process. After the test, you can click to generate excel report as required to realize high-efficiency automation. The control software is Labview, a special development software for precision instruments and equipment of NI company of the United States, with flexible interface operation, calibration interface for the sensor, PLC implementation control, and stable performance.
6. Hydrostatic test section:
6.1 The system is controlled by automatic boosting and can also be operated manually. The pressure test bench has two test interfaces, each of which has a station control valve. The system can test multiple products at the same time. The chamber body is respectively the front upper door visual pressure operation platform. The interface adopts Taiwan Yadeke high-voltage fast interface. The material is stainless steel.
6.2 Test type: the fire extinguisher cylinder and head can be tested separately. The connecting parts and connecting parts can be subjected to hydrostatic pressure test of more than 30MPa.
6.3 Water pipe: high pressure hose, with the maximum pressure resistance of 35MPa.
6.4 Hydraulic part: adjust the boosting rate and control accuracy through frequency converter + computer + PLC.
6.5 Pressure device: the test pressure is very stable by using the high-pressure pump and constant pressure irrigation of Vano, Germany.
6.6 Water storage device: made of SUS304 stainless steel. After the test, the water can be recycled after being filtered by the filter screen to avoid waste.
6.7 The accuracy of the pressure indicator used in the test is higher than level 1.6.
6.8 Filtering device: after the test, the water recovered to the water storage device is filtered and recycled.