JB/T 3082-1991 Oil level indicator for steam turbine oil tank JB/T3082-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T3082
1991-07-01
1992-07-01Xiaohuang
Zhang Xianji
Jijia Kui Lu Wa Yi Dao
Subject Content and Scope of Application
JB/T3082
JB308282
This standard specifies the type, size, technical requirements and inspection rules of oil level indicators for steam turbine oil tanks. This standard applies to oil level indicators for steam turbine oil tanks. Cited standards
GB 6893
ZB K54 035
JB 2900
JB2901
JB2862
Industrial aluminium and aluminium alloy drawn (rolled) pipes Technical specifications for cold-worked parts of steam turbines
Technical conditions for painting of steam turbines
Technical conditions for rust prevention of steam turbines
Technical conditions for packaging of steam turbines
3 Types, model indication method and dimensions and specifications 3. 1 The types of oil level indicators for steam turbine oil tanks are divided into Type A - access type (see Figure 1), Type B - take-over type (see Figure 2) and Type C - intake straight pipe type (see Figure 3).
3.2 Model Indication Method
The model of the oil level indicator consists of the following three parts, each of which is separated by a short dash: YZ
1991-07-01
Oil level indicator modification times (expressed in Arabic numerals) Oil level indicator weak range
Oil level indicator type (expressed in A, B, C) Tide level indicator code (expressed in Chinese phonetic letters) 1992-07-01 Small cable
JB/T3082
Operating level
Oil top cover
Oil Oil level gauge maximum range oil level
Operating oil level
Oil level gauge minimum range oil level
High oil level alarm
Installation position
Low oil level alarm
Installation position
JB/T3082
Oil level gauge maximum range oil level
Operating oil level
Oil level gauge minimum range oil level
High oil level alarm
Installation position
Low oil level alarm
Installation position
Operating layer
3159X4. 5
Oil tank top cover
JB/T3082
Oil level gauge maximum range oil level
Operation oil level
Oil level gauge minimum range oil level
High oil level alarm
Installation location
Low oil level alarm
Installation location
Operation floor
8159X4. 5
3.3 Dimensions and specifications
JB/T3082
3. 3.1 The dimensions and specifications of type A oil level indicator shall comply with the provisions of Table 1. Table 1
Apply according to the site text (the total length of the net rod after the addition is not more than 20C0)150
B The dimensions and specifications of the strict oil level indicator shall comply with the provisions of Table 2. 3.3. 2
3.3.3 The size specifications of the C type oil level indicator shall comply with the provisions of Table 3. Table 3
Technical requirements
± 300
The range of the oil level indicator is ±400mm;
±300mml±200 mm:=100 mm Four gears, for different oil tanks to choose from, the design of the oil level indicator group should make the part immersed in the oil 50%65% of the float height. 4.2
The oil level indicator should allow the user to check the activity of the float rod at any time, without any jamming. The float rod and float of the oil level indicator should be made of @25×1mm aluminum alloy material, and its technical requirements are in accordance with GB6893: 4.
When there are special requirements, it shall be agreed upon by the manufacturer and the user.
JB/T3082
4.5 The straightness tolerance of the float rod shall comply with the accuracy of K54035F grade.4.6 The coaxiality between the float and the float shall be within 2mm.4.7 The outer surface of the float and the inner surface of the shell shall be smooth and free of burrs.4. The outer surface of the oil level indicator shall be smooth and free of obvious concavity.4.9 The oil level indicator has two alarm devices (the alarm device adopts a micro travel switch, and the alarm signal is output in the form of a contact). If there are special requirements, the manufacturer shall negotiate with the user.
Adjustable high oil level alarm device:
Adjustable low oil level replacement device
4.1 The oil level indicator has two indication forms, B
Remote indication (including local indication): b.
Local indication,
4.11 The pointer, scale plate, engraved lines and colors must have a sharp contrast and should be clearly visible under indoor lighting. 4.12 The shell of the oil level indicator and the B type must be tested for tightness. The test pressure is 0.196 MPa (2 kg[/em=) and the duration is 5 min. There should be no pressure shoulder leakage. 5 Inspection rules
5.1 The finished product shall be accepted according to the following provisions.
5.1.1 The oil level indicator shall be free to move without sticking. 5.1.2 The indication accuracy error of the oil level indicator shall not exceed 3mm. 5.1.3 The position error of the alarm device after three actions (based on the scale) shall not exceed ±3mm. 5.1. + The accuracy of the telex transmitter (based on the scale) shall not be less than 1.5. 5.1.5 Meet the requirements of 4.2 in the technical requirements. 5.2 Each oil level indicator shall be inspected and qualified by the quality inspection department of the factory, and shall be shipped only after being accompanied by a certificate of conformity. 6 Marking, painting, rust prevention, packaging
6.1 Marking
Each oil level indicator shall be marked on the nameplate:
Manufacturer name!
b. Product name,
Product model,
Factory number and date:
Indication method.
(. 2 Oil, anti-casting, packaging
The oil level indicator cannot be electrostatically tested. The surface of the oil level indicator should be painted with resistant paint. The paint should comply with the provisions of B2900. The surface of the float should be anti-pinning. The anti-rust should comply with the provisions of JI2901. The packaging should comply with the provisions of JB2862. Additional instructions:
This standard is proposed and classified by the Shanghai Power Generation Equipment Complete Design Institute of the Ministry of Machinery and Electronics Industry. This standard is issued by Nanjing Steam Turbine Motor Factory, Wuxi River Sensor Factory, Shanghai Substation Equipment Complete Design Institute The Institute is responsible for the capital and the seal. The drafters of this standard summary are Chen Yalian, Xu Shizhong and Jiang Heying. 6
JB/T3082
Yan880b1230
19XXXX Ridge
100044
Dai DuanX/XbzxZ.net
Zhang JuXXX,XXX
19XX CollectionXX Cabin
X Wei Flounder
DepxXX.XX Wing
Xian Ji Lotus Snapper
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.