JB/T 8699-1998 This standard specifies the definition, specifications, technical requirements, inspection methods, inspection rules, and marking, packaging, transportation and storage of high-pressure fan bag dust removal units (hereinafter referred to as units). This standard applies to the design, manufacture, inspection and use of the units. JB/T 8699-1998 High-pressure fan bag dust removal units JB/T8699-1998 Standard download decompression password: www.bzxz.net

IcS 13. 030. 40
Machinery Industry Standard of the People's Republic of China
JB/T8699-[998
High-pressure ventilatur bag filter unit199803-19 issued
Ministry of Machinery Industry of the People's Republic of China
1998-07-01 implemented
JB/T8699:998
1 Greece
2 Reference standards
Model, specification:
Technical requirements
Inspection method
Inspection rules
8 Warranty period
9 Standard. Packaging, transmission and storage
Appendix A) Calculation method for converting unit population wind base to industrial sinking weight JE/T8699
This standard is the first to be implemented.
Small standard for the removal of dust from small productsbzxZ.net
This standard is provided by the Ministry of Machinery Industry, the Ministry of Industry and Information Technology ... 【Scope
Machinery Industry Standard of the People's Republic of China
High pressure fan bag filter unit
High pressure ventilalor hng filter unitJB/T901998
This standard defines the specifications, technical requirements, inspection methods, inspection and testing conditions, packaging, and the use of this standard. 1. The selection, inspection and use of this standard are applicable to the following standards. 2. The referenced standards
The texts included in the following standards are the commitments of the enterprises in this standard. The technical data are valid from the time of this standard edition. All standards are open to revisions. All parties using this standard should consider the possible omissions in the latest version of the following standards. GR699-88
GB 7008H | 8
CB!r8S88
G115389
GB-213RAS
CE/T :S:
JR/T G917—1
ZB J72 0.20
3 standard support
high quality Kangxin pin structure technology bar needle
Qingtong quality cable structural steel
carbon powder group support and plate alloy structure hot correction thin plate steel strip gas medium, also nitrogen allowable and gas protection expansion protection selection gap book to this form and size ten practical manufacturing enterprise technical conditions
fly length and position bone tolerance unproduced tolerance beat
ventilator actual gas dynamic performance test and method
public and record meeting general discussion: standard tolerance and the original reserve tolerance "stock tolerance: shallow life ten notes public welfare
high quality pressure structure cold drawn steel support technology multiple pieces
ship and alloy plate size and allowable deviation||t t||Carbon structure and low alloy steel structure, fuel emulsion and non-hot rolled materials, non-uniform angle adjustment, shape, weight and allowable elongation difference, unequal angle copper size, shape, or allowable difference in efficiency, technical properties and test methods of dust removal units
Technical properties and test methods of semi-infant performance test points
Wet type dust collector performance test method
Technical conditions for filter cabinets for dust removal units
General exhaust level
This non-adopts the following meaning,
High pressure fan bag type unit
Approved by the Ministry of Machinery Industry in 1981
Implementation on July 1, 1998
[B/T 86991908
The dust-proof unit consists of a fan, a motor, and a mounted part, and the total pressure of the fan is greater than 6kPe. 3.2 The power
is the power available for external consumption in the multi-stage fan pressure. 3.3 The processing air volume
is the amount of gas discharged from the unit measured at the inlet of the machine, measured in m/h (a.3 in G1158-s). 3. 4 The inlet air volume specified by the design and
is the performance index that meets the requirements at the lowest industrial wind speed, which is the basis for the calculation of the unit. 3. The wind speed
corresponds to the unit overtemperature wind speed of the design inlet air volume, measured in m/h. 3. 6 The above (actual) time
is in the actual workplace|suction hood! ) temperature, the dust-laden gas entering the dust collector under the condition of humidity, 3.7 maximum vacuum degree
optimal unit can also be used for the maximum negative pressure of the positive force of the atmosphere after the integrated blade (before closing the air inlet, the air volume at the inlet is the value of the free value when it is stupid, in ka.
4 Model, specification
4. The above unit model indication method and meaning are as follows: E
4.2 Unit specification table]:
Design inlet air limit azh
Design over-add return speed m/niri
5 Technical requirements
Design inlet air
Single-stage fan
Two-stage fan
Preventive type removal
Long 1 unit specification
Three, the unit should meet the requirements of this standard and be approved by the prescribed procedures 5.2 The dust removal noise of the unit is 25. When the dust is not collected at the designed wind speed, the dust rate is increased by more than +0.2*, and the dust rate is allowed to be interpolated. The dust removal rate of the machine should meet the relevant standards. S.3 The soft filter bag of the unit should be cleaned or stopped in the shutdown state. 5.4 The user should consider the wind volume at a rate greater than 4Pa, 5.5 The technical separation data of the unit are shown in Table 2:
6 Maximum
Liu Won's face!
Human power
Machine F head
JB/T8699-1998
S.6 The sound value of the unit should be less than 85) 50c during the normal operation of the unit
5. Under the pressure of the planned population network and the use of resources, the unit is fully blown. 2 4
5 The fan blade must be sent to perform static balance control. The card balance product grade is not less than 2312 Zhongguan 5mm: Grade
5.9 The wind Kai of each level of the machine light collection and over-discharge are matched with the dust filter bag to form a deformed piece, and the three-sensitivity travel does not wait for the filter fee to be damaged. 5.
The rack should comply with the provisions of [B]. The distance between the filter bag and the rack should not exceed two points.
12 The matching relationship between the filter bag and the rack should ensure that the bag can be loaded lightly. At the same time, the suction rate should not be higher than two points in one bag. It should be able to meet the regulations and should not be broken. 5.13
In addition to the cattle group, the optical operation of the fan should be complete, the penetration should be small, and the defects such as holes, inflammation and end penetration should be checked. The welding operation should reduce slag and explosion. The external joints shall be smooth, straight and even; the joints shall be solid and sized (within the specified range). 5.15 The material requirements for the components of the assembly shall comply with the requirements of Table 3. 5.16 The shape and position tolerance requirements for the assembly body C3 812. CB 3274, GB 700
CB31911
GB3191
CB699.CP/T2078
GB9THJ,GBaT,GB700
The fixed parts of the unit are adopted in accordance with the requirements of the shape and shape and the tolerance of the parts. The shape and shape of the parts should meet the requirements of the product: 1184. 517 Unit parts installation requirements
III.17.1 The impeller and the main shaft should be chain-mounted. The hole and the hole should be a transitional matching platform. 5.17. The blades of the impeller should be 2-way solid, The blade should be rubbed with the ground key and the distance between the two equal pieces on the torsion plate is allowed to be 1mm.
5.17,3 The vertical runout of the blade is greater than 1.5mm and the horizontal runout is greater than 1.0nur5.17.1 The unmarked size of the above parts: The difference is G. The second level manufacturing of 1803, the table size tolerance of all chain welded parts should be 18 level frequency
5. The pressure progress of the unit shell is greater than the maximum self-inductance value of the unit, 3
5.10 Appearance and continuous requirements of the unit
JH/T 8609---1998
5.19.1 The appearance of the machine body should be smooth and flat, and the outer surface of the welded parts should not have obvious short marks and unevenness. 5.19.2 Before coating, the rust, welding slag, oil, dust and other impurities on the surface to be coated should be removed. The parts not to be coated should be cleaned with rust remover. There should be no rust under the coating film, the color should be uniform, and there should be no defects such as cavities, flaking, brittleness, cracks and marks. The pressure should be less than 5 m:
Inspection method
6.1 The inlet air volume measurement of the unit prototype shall be based on the provisions of CB11653, and the static pressure measurement hole structure shall be based on the provisions of GB/T15 87946:4. The on-site inlet air volume measurement panel of the expansion unit shall be based on the provisions of GB12138. The sharp point should be as far as possible on the inlet and close to the dust removal area. 6.2 The unit's ventilation rate is calculated according to the method in the appendix of the recording A (the rate is T condition flow rate. 3 The pressure measurement is used for the unit to continuously generate electricity for 4 hours. The method is 4/m3). 3R/m filter normal filtration unit reaches the design flow record according to the current provisions of GT11653. 6.4 Measurement of inrush rate
The end wind rate of the unit prototype is measured on the unit! Usually, after ash 4, the smoke screen inlet flow is the design inlet flow. 6.4.1
1. The actual measurement of the required wind is converted according to the formula (1): s = /p-22C -2//+
In the formula -
is the wind force,
actual wind city
maximum air density of the system, Pa
on-site system daily pressure P.
6.5 The method for measuring the unit removal rate is as follows: B11653, 66 The unit dust removal rate (2) is as follows:
Wu Zhongxiang-Trace Dust [
Total, -- Unit inlet standard flow rate Nm/h; population standard grams including this seat/Nm
- outlet standard natural music, n small
C, mountain two original conditions including living degree, R/Nm
QCQGX1GC%
. The sound test of the unit prototype is carried out in the anechoic room under the condition of natural operation under the design recording device: when there is no anechoic room, it should be built in a place with no reflection conditions except the ground, and the location of the reflection point should comply with the provisions of 113-口7. The sound of the unit 1 is the average value of the four-point measurement, and the noise correction formula (3) is calculated: L10lg
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