This standard specifies the type and size, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage requirements of liquid level detectors. JB/T 7340-1994 Liquid Level Detector JB/T7340-1994 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T7340-94
Liquid Level Detector
Published on July 18, 1994
Ministry of Machinery Industry of the People's Republic of China
Implemented on July 1, 1995
Mechanical Industry Standard of the People's Republic of China
Liquid Level Detector
1 Subject Content and Scope of Application
JB/T 734094
This standard specifies the type and size of liquid level detectors, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage requirements.
This standard is applicable to the detection of liquid level of water and oil containers with nominal pressures of 0.1MPa>0.1~1.6MPa,>1.6~10MPa,>10~31.5MPa.
2 Reference standards
GB4879
GB7284
Rust-proof packaging
Sugar rack wooden box
GB/T13306
3 Product classification
3.1 Product varieties and types
Liquid level detectors are divided into water level detectors and oil level detectors, and "S\" and "Y" are used to represent the category codes of the applicable medium water and oil respectively.
3.2 Detectors applicable to water media are classified according to the nominal pressure and the connection position with the container (left or right) There are five types of water level detectors: S1 type
normal pressure water level detector;
water level detector with nominal pressure pN>0.1~1.6MPa; S2 type
S3 type - water level detector with nominal pressure pr>1.6~10MPa; S4 type -
water level detector with nominal pressure Pw>10~31.5MPa, connected to the left side of the container; S5 type - water level detector with nominal pressure pn>10~31.5MPa, connected to the right side of the container. 3.3 Detectors for oil medium There are five types of oil level detectors according to the nominal pressure and the connection position (left or right) with the container: Y1 type -
Y2 type -
- normal pressure oil level detector;
- oil level detector with nominal pressure>0.1~1.6MPa; oil level detector with nominal pressure pN>1.6~10MPa; oil level detector with nominal pressure Ps>10~31.5MPa and connected to the left side of the container: Y5 type -
- oil level detector with nominal pressure>10~31.5MPa and connected to the right side of the container, 3.4
Type and size
Type and size shall comply with the provisions of Figures 1 to 10. The connection size on the container shall comply with the provisions of Figures 11 and 12. Approved by the Ministry of Machinery Industry on July 18, 1994
Implementation on July 1, 1995
Jilin District
Connection container
Highest root limit water level (n)
Determination of the highest limited water level (a)
Device installation position
Low limit water level (0)
Connection container
JB/T 7340-- 94
4-s through hole
Figure 1S1 type water level detector
Signaling device
Lowest limit water level (0)
Signaling quantity Installation position
Compression burning cold
Note: () The center distance between the support seat and the water rotary valve is L (L3000mm), the number of signaling devices and their installation positions are determined by the container designer, ②Except the standard tube, scale and signaling device, the weight is 6kg2
Sugar container
Maximum limit water level (a)
High limit water level (n)|| tt||Installation position of signaling device
Low limit water level (0)
JB/T734094
Air flow dance
(on the road)
Pressure installation final chamber
Signaling technology:
Lowest limit water level (0)
Voltage chamber
Water control room
(lower valve)
Figure 2S2 type water level detector
Note, ①The center distance L (L≤3000mm) between the air flow meter and the aquarium valve, the number of signaling devices and their installation position shall be determined by the container designer. ②Except the standard tube, scale and signaling device, the weight is 9.7kg$13.
Maximum limit water level
$40×4
Record high limit water level
Installation position of signaling device
Low limit water level
Stainless steel pipe
JB/T7340-94
Connectionwww.bzxz.net
Figure 3S3 type water level detector
Air supply (upper (Read)
Yu Ziluo Kang
Actual water level
Signaling capacity
Minimum limit water level
Installation position of signaling device
Shui Shi Xi (Read below)
Pressure Ziluo
Drawing bracket practice tile
Note: @) The center distance between the pneumatic valve and the water film valve is L (L500Cmn). The number of signaling devices and their installation positions shall be determined by the container designer. ③Except stainless steel temporary and signaling device, weight 18kg, 4
Drawing bracket screw hole
Joint body
JB/T7340-94
Maximum reporting limit water level
Measurement of high limit water level
Signaling device installation position
Stainless steel pipe
Signaling device
Minimum limit water level
Water limit control| |tt||Installation position of signaling device
Connection tank
Meiyili meter
Actual water level
Gas valve
(Shanghai)
Shuiwenyue (Xialang)
Figure 4S4 type water level detector
Note, ①The center distance between the gas valve and the water level L (L≤7000mm), the number of signaling devices and their installation position are determined by the container designer. ②Except stainless steel pipe and signaling device, weight 48.9kg6
Gas control width
(upper valve)
(lower valve)
Actual water level
JB/T7340-94
Due to fixed bracket green nail hole
Connector
Highest limit water level
Measurement of high limit water level signal
Installation position
Stainless steel pipe
Most limit water level
Most limit water level signal
Installation Installation position
Quality table
Figure 5S5 type water level detector
Signal device
Note: ①The center distance between the air valve and the water valve is L (L≤7000mm). The weight of the signal device and its installation position are determined by the container designer. The weight excluding the stainless steel pipe and the signal device is 48.9kg, o8
Measurement of high limit oil level ()
Base high limit position (n)
Installation position of the signal device
Measurement of low limit oil level (0)
JB/T 734094
49.5Through hole
Figure 6Y1 oil level detector
Dongbaoxiong's
Indicator
Measurement of low plate limit oil level (0)
Indicator installation position
By acid drop
Note: () The center distance L between the support seat and the oil valve (L center 3000mm), the number of the indicator and its installation position are determined by the container designer. In addition to the standard pipe, scale and indicator, the measurement of 6kg+13. 5
High limit oil level (s)
Measurement of commercial limit oil level (city)
Indicator to be installed position
Stock low extension touch position (0))
(read below)
JB/T 7340--94
Actual oil level
Gas network
(upper cabinet)
Indicator
Tightening screw
Lower plate limit (0)
Indicator installation position
Tightening quality
Figure 7Y2 type wave position detector
Note: The center distance L between the gas network and the oil energy valve (L center 3A0mm), the number of signal devices and their installation advantages are determined by the device designer③Except the standard tube, ruler and signal device, the weight is 4.7kg
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