JB/T 2001.58-1999 JB/T 2001.58-1999 Water level indicator for water system pumping station JB/T2001.58-1999 Standard download decompression password: www.bzxz.net

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Standard of the Machinery Industry of the People's Republic of China
JB/T 2001.1~2001.74—1999
Water system assembly and parts1999-06-28 Issued
State Machinery Industry Bureau
2(-01-U1 Implementation
Standard of the Machinery Industry of the People's Republic of China
Water system level indicator for water supply to pump station
Water system--Waler level indicator for water supply to pump station aceunulator1 Scope
This standard specifies the type, size and technical requirements of water level indicators. J2001.58—1999
B206—84
This standard is applicable to the detection of the water level of the high-pressure oil tank of the 20 and 31.5MPa water system basic pressure station. It is not applicable to the detection of the oil level of the high-pressure oil tank of the oil pump replacement pressure station.
2 Type and size
2.1 The standard is left, and the right type can also be made. It only needs to be manufactured and the air gate valve body and the water gate valve body are respectively connected with the white The shape can be preserved by replacing the relevant parts of the pipe joints of the stainless steel pipe. 2.2 This standard can be used in conjunction with the LED liquid level indicator to form a colored reverse light that changes with the water level: the water level indicator is used at the corresponding location.
2.3 This standard is not applicable to the modification of mercury contact water level indicators without changing the electrical circuit. 2.4 The length L of the stainless steel pipe of this standard, the number N of the flat ridge device and its installation position are determined by the designer. This standard allows the minimum distance between two adjacent water level indicators to be 50mm. 2.5 Stainless steel pipe The inner and outer diameters shall not be changed at will and must conform to the standard size of 60×Bm. Otherwise, the magnetic steel and pipes of this standard cannot be used, or they can be adopted after consultation with the centralized production unit. 2.6 type or with the size connection network 1, Figure 2 stipulates. 3 Technical requirements
3.1 Nominal pressure 31.5M, test pressure 42MPa Nominal pressure 20MPa, test pressure 3UMPl test pressure liquid is consistent with working liquid, maintain pressure for 1min, and no leakage is found in any ring. 3.2 The sluice and air valve should be connected to the white installation and test speed separately, and then connected to the high-pressure water cut-off after installation. Start the pressure test. At this time, the two valves must be in the original open state to detect the explosion.
3.3 The joints of the stainless steel pipe end and the flange are welded with stainless steel welding rods. The welding must be fully penetrated. After welding, carefully level the inner wall and check the coaxiality of the flange joint and the stainless steel pipe. The coaxiality deviation shall not exceed 0.2mm. 3.4 The linear deviation of the stainless steel pipe shall not exceed 0.25mm per meter. The lead multiplication deviation of the stainless steel joint shall not exceed 0.5mm per meter. -3.5 The contact of the stainless steel pipe can work 10 times under the pure load of DC 24V and 200mA. When disconnecting the relay line sequence of the inductive load, a chain device or a protective circuit with a line width far less than 1000 should be selected. 3.6 The wire that is connected to the "lifting pole" inversely with the dry pipe must be relatively high. 3.7 The float of this water level indicator is made of a solid float with a density of "m". In the water emulsion, the float will not sink even if it is filled with water. IR/T 2091.5R—1999 3.8 The best treatment of the float: turn off the water and air, gradually open the air vent of the upper cover to make it fully vented, and then drain the water from the upper cover. The cover will be lifted up and the float will be taken out. Slowly saw the inner wall of the stainless steel hook pipe regularly. 3. The floating valve is installed at the following point: After the cylinder is put down, the valve is closed: At this point, the air source must be opened first, and the water level is fully leveled. Then the water level is slowly increased: At this time, the floating balance rises with the water level in the room, and the water consumption is calculated! The following 1 pipe device must be inspected as a check block, and the 3.10 pipe device on the upper rail is vacant and the magnetic field is moved. 3.11 The magnetic residual float is used in conjunction with the dry pipe management device and shall not be replaced or used in conjunction with other sets: 4 markings
Dry pipe device = 7: Stainless steel pipe length Z-2000m can remember the water level indicator of the lower pipe: Water indicator N=7, =2000JB/T2001.58【99919Www.bzxZ.net
Civil position
182001.591949
Preventive joint
Pressure water
1-Water valve: 2-T gate valve: 3-Pressure float: 4\Pu Zhu device: 5 Keshi joint diagram
JB/T 2001.58-1999
Selection line
Upper construction parts
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