HG/T 20549.4-1998 Design conditions proposed by the chemical plant piping layout profession
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Design conditions proposed by the pipeline layout specialty of chemical plants
HG/T20549.4—1998
Standard granted by n.bamop.co1Explanation
1.0.1The following conditions are the most basic content and depth requirements that the pipeline layout specialty (excluding equipment layout) should provide in the detailed engineering design
The content and depth of some conditions can be supplemented or modified according to the specific circumstances of the project engineering design. 1.0.2
The conditions of foreign projects or imported projects shall be implemented in accordance with the provisions of the contract or agreement. 1.0.31
The conditions can be implemented according to the relevant documents of the design unit. 1.0.4
1.0.5The conditions for material statistics shall be determined according to the professional division of labor requirements of the design unit. 1.0.6
For any conditions not included in this compilation, each unit may decide separately according to its own customary practices. 167
Standard Search Network ummbzsomoveom Pipeline Load Conditions
Pipeline load conditions are proposed by pipeline machinery or pipeline layout professionals. 2.1 Scope and purpose
2.1.1 This regulation applies to the preparation of pipeline conditions for chemical plants. 2.1.2 This condition should be proposed at the stage of detailed engineering design pipeline layout drawing (research version) for structural calculation by civil engineering (or equipment) professionals.
2.2 Based on the data
Pipeline layout design engineering regulations;
Pipeline layout drawing:
-Equipment layout drawing:
Pipeline grade table;
-Insulation design regulations;
-Related documents published by material control professionals:
Pipeline instrument flow chart (PID).
2.3 Content depth of pipeline load conditions
2.3.1 Pipeline loads should include the sum of pipeline weight, fluid weight, insulation weight, concentrated load and other loads (such as snow load).
1 Pipeline weight
Pipeline weight is calculated according to pipeline material standards or data from pipe manufacturers. 2 Fluid weight
1) When the fluid is a liquid, when the fluid density (e) is greater than the density of water, it is calculated according to the weight of the fluid that fills the pipeline volume; when the fluid density (p) is less than the density of water, it is calculated according to the weight of the water that fills the pipeline volume. 2) When the fluid is a gas, when the gas pipeline needs to be tested for water pressure, it is calculated according to the weight of the water that fills the pipeline volume; when the gas pipeline needs to consider the filling amount of gas condensate in the pipeline, it can be calculated according to 10% to 20% of the cross-sectional area of the pipeline.168
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3 Calculation of insulation layer weight
Calculate according to insulation standards or data provided by manufacturers. 4 Concentrated loads
1) The weight of pipe fittings (including valves) comes from samples or manufacturer's data: 2) The weight of pipe supports and hangers;
3) The reaction force of safety valves is provided by the process system professionals; 4) The thrust of regulating valves is provided by the instrument professionals; 5) Wind loads, earthquake loads, etc. are provided by civil engineering professionals. 2.3.2 When the pipe supports in the device are designed by civil engineering professionals, the pipeline machinery (or pipeline layout) professionals should propose the pipe rack design conditions and attach a simple diagram.
2.3.3 The first pipeline load condition in the detailed design stage is limited to loads of 1 ton and above; the second condition is a load of 200 to 999 kg, and loads below 200 kg are included in the average floor load. Pipeline loads can generally be marked on the equipment layout drawing or the research version of the pipeline layout drawing. 2.3.4
The pipe load on multi-story floors or platforms shall be expressed separately according to the elevation of each floor or platform. 2.3.5
Pipe rack rooting type
Pipe rack rooting type can be found in Chapter 16 of "Chemical Plant Pipeline Mechanical Design Regulations" (HG/T20645.5). 1
Pipeline load on buildings and structures can be found in Table 2.3.6 Pipeline load condition table acting on buildings and structures. 2
Table 2.3.6 Load conditions for pipelines acting on buildings and structures Table of pipe rack number
or pipeline number
XX××
Load (kg)
Horizontal force (kg) P Coordinates of action point (M)
Note: C—acts on columns:
B—acts on beams, sides of beams or bottoms of beams;
FL—acts on the top or bottom of floor slabs. N
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Calculation conditions for pipeline flexibility
3.1 Scope and purpose
3.1.1 The provisions of this chapter apply to the preparation of calculation conditions for pipeline flexibility in chemical plants. 3.1.2 In the basic engineering design stage, the piping layout professionals should cooperate with the equipment layout and piping machinery professionals to perform necessary stress calculations on the key piping systems that affect the equipment layout. 3.1.3 In the detailed engineering design stage, the piping layout professionals should, based on the "critical piping system table", propose axonometric sketches of all pipelines that require stress calculations for the piping machinery professionals to perform stress analysis and calculations. 3.2 Based on the data
-Pipeline layout design engineering regulations;
-Pipeline layout drawings:
-Equipment layout drawings;
Related documents published by the process system;
-Pipeline grade table;
-Related documents published by the material control professional:
-Pipeline characteristics table,
3.3 Pipeline flexibility Draw a clear and complete axonometric sketch of the pipeline stress calculation in depth. The north-south direction should be marked according to the regulations of the formal axonometric drawing. 3.3.1
3.3.2 In principle, one piping system is drawn on one pipeline stress axonometric drawing. A piping system refers to the pipeline from one fixed end point to another fixed end point and the branch pipe (excluding exhaust and drain pipes) led out between the two fixed points to the nearest fixed point on the branch pipe.
3.3.3 Pipelines, valves (including regulating valves, safety valves, etc.), flanges, and pipe fittings (including special pipe fittings) should be given on the pipeline stress axonometric drawing.
3.3.4 When connecting to equipment, the equipment position number and pipe port symbol should be indicated. If the pipeline is connected to important equipment such as a turbine, the equipment should be filled in. Name to attract the attention of the calculator. 170
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The data table on the pipeline stress axonometric drawing should be filled in clearly item by item, see Figure 3.3.7. 3.3.8 For those who have force requirements for the machine pump interface, the information of the machine pump should also be provided. 171
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4 Opening conditions on buildings and structures
4.1 Scope and purpose
4.1.1 The provisions of this chapter apply to the preparation of opening conditions for pipelines passing through floors, platforms and walls in chemical plants. 4.1.2 Pipe opening conditions are proposed at the stage of pipeline layout drawings (research version) of detailed engineering design for use by civil engineering and related professionals.
Based on the data
Pipeline layout design engineering regulations:
Pipeline layout drawings;
-Equipment layout drawings;
-Related documents published by the process system;
-Preliminary layout condition drawings provided by civil engineering professionals Type and thickness of insulation.
4.3 Content depth of pipe opening conditions
4.3.1--Generally, the opening conditions are proposed three times: the first is the opening conditions for pipe diameter DN ≥ 300mm, so that the structural professionals can design the beam layout. The second is the opening conditions for pipe diameter 200 ≤ DN < 300mm. The third is the opening conditions for pipe diameter DN < 200mm
4.3.2 The opening condition diagram generally adopts the equipment layout diagram or the template diagram of the civil structure and the copy of the plane and elevation diagram of the building. The location, shape, size and other requirements of the opening are marked on the diagram. For multi-story floors, the opening condition diagram should be proposed separately according to the elevation of each floor. 4.3.3
The diameter of the opening should be determined according to the following conditions; 4.3.4
For pipes without insulation, not passing through flanges, the diameter shall be calculated based on the outer diameter of the pipe plus 40mm; for pipes without insulation, passing through flanges, the diameter shall be calculated based on the outer diameter of the flange plus 30mm; for pipes with insulation, not passing through flanges, the diameter shall be calculated based on the outer diameter of the insulation layer plus 40mm; 3
For pipes with insulation, passing through flanges, the larger of 2 and 3 above shall be calculated. 4
For multiple pipes arranged side by side and very close to each other, they can be combined to open large rectangular holes. 4.3.5
Surface drawing).
Hole through floor and platform is generally round, hole through wall is generally square. The opening shall not damage the structure of beam, and shall not affect windows, doors, lintels and other components. If the hole edge needs to be added with steel plate or angle steel, or bolt hole and other special requirements, it shall be noted or attached with detailed drawing. Example of floor or platform and wall opening
When the floor opening has flange requirement, the flange contour line shall be drawn, see Figure 4.3.9-1 Opening with flange (flat 2070
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SH600X300
Opening with flange (plan view)|| tt||Figure 4.3.9-1
2 Pipeline penetration through the floor opening See Figure 4.3.9~2 Pipeline penetration through the floor opening. Casing
Floor slab penetration Waterproof layer around
(a) Floor opening without casing (elevation) 2
Reinforcement plate
Welded with steel bars
(b) Floor opening with casing (elevation)||tt| |Openings for pipes passing through floors
Figure 4.3.9-2
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3 Openings on the wall See Figure 4.3.9-3 Openings on the wall. PA-902I-25
IA-9018-40
PA-9024-40
EL106600
EL106370
150325
View in A
(a) Openings on the wall without casing
Steel plate (thickness ≥ 4)
Welded on the pipe
Wall thickness + 100
(b) Openings on the wall with casing
Figure 4.3.9-3
Wall openingbZxz.net
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5 Equipment pipe mouth and support conditions
Scope and purpose
5.1.1 The provisions of this chapter apply to the preparation of pipe mouth and support conditions for chemical equipment. 5.1.2 This condition adds the requirements for pipe mouth flanges and equipment supports on the basis of the equipment conditions provided by the system professional to the equipment professional, and at the same time proposes the standards for insulation (cold) rooting parts and the thickness of the insulation layer. 5.2 Based on the data
Pipeline layout design engineering regulations;
-Flow chart;
-Pipeline characteristics table;
Pipeline grade table;
Equipment operating pressure, operating temperature;
Equipment list .
5.3 Equipment pipe opening and support conditions The depth of the equipment pipe opening flange shall be specified according to the pipeline grade, and the possible bearing force and torque of the pipe opening shall be considered in the electronic calculation. 5.3.1
The fixed side and sliding side of the horizontal equipment support shall be marked on the equipment condition diagram. 5.3.2
5.3.3 For water coolers, if the water inlet pipe is directly introduced from the buried pipe, the fixed side of the cooler shall be set on the side of the water inlet pipe.
5.3.4 The height of the equipment support shall be determined according to how the lower pipe opening of the equipment is connected to the pipeline and consider the position of the cut-off valve and the low-point drain pipe, insulation and installation bolts. 5.3.5 When the horizontal equipment is supported on a concrete foundation, the equipment support can be determined according to the standard support and then adjusted according to the height of the concrete foundation to meet the equipment elevation. 5.3.6 If the equipment is supported on a floor or platform, the equipment elevation can be adjusted by raising the equipment support or adding steel structure by civil engineering.
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6.1 Scope and Purpose
6.1.1 The provisions of this chapter apply to the preparation of local lighting conditions for chemical plants. 6.1.2 Local lighting conditions are proposed at the stage of the pipeline layout diagram (research version) of the detailed engineering design, and the gas professional carries out lighting design.
Based on the data
Pipeline layout design engineering regulations;
-Flowchart;
-Pipeline layout diagram;
-Equipment layout diagram;
-Electrical design regulations.
6.3 Content Depth of Local Lighting Conditions
When it is difficult to operate or inspect certain equipment in the device using general lighting methods at night, local lighting should be set, such as local operation positions, local instruments or electrical instrument panels, local level gauges, important operations or frequent patrol areas, etc.
6.3.2 Indicate the lighting direction, high and low ranges of the illuminated parts, illumination, requirements for lamps, coordinates, etc. of the local lighting on the pipeline layout drawing (research version). 6.3.3
For the content depth of local lighting conditions, please refer to Table 6.3.3 Local lighting conditions table. Table 6.3.3 Local lighting conditions table
Equipment to be illuminated
Attachment name
Equipment number
Level gauge
Coordinates of lighting point (mm)
xxxxxxxxxxxx
Standard lifting net
Elevation range
+800~+1200
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Lighting direction
(Based on the north direction 0° of the drawing)1 The provisions of this chapter apply to the preparation of local lighting conditions for chemical plants. 6.1.2 Local lighting conditions shall be proposed at the stage of the pipeline layout drawing (research version) of the detailed engineering design, and the gas professional shall carry out lighting design.
Based on the data
Pipeline layout design engineering regulations;
-Flow chart;
-Pipeline layout drawing;
-Equipment layout drawing;
-Electrical design regulations.
6.3 Content depth of local lighting conditions
When it is difficult to operate or inspect certain equipment in the device using general lighting methods at night, local lighting should be set, such as local operating positions, local instruments or electrical instrument panels, local liquid level gauges, important operations or frequent patrol areas, etc.
6.3.2 Note the lighting direction of the local lighting, the high and low ranges of the illuminated parts, the illumination, the requirements for lamps, coordinates, etc. 6.3.3
For the content depth of local lighting conditions, please refer to Table 6.3.3 Local lighting conditions table. Table 6.3.3 Local lighting conditions table
Equipment to be illuminated
Attachment name
Equipment number
Level gauge
Coordinates of lighting point (mm)
xxxxxxxxxxxx
Standard lifting net
Elevation range
+800~+1200
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Direction of lighting
(Based on the north direction 0° of the drawing)1 The provisions of this chapter apply to the preparation of local lighting conditions for chemical plants. 6.1.2 Local lighting conditions shall be proposed at the stage of the pipeline layout drawing (research version) of the detailed engineering design, and the gas professional shall carry out lighting design.
Based on the data
Pipeline layout design engineering regulations;
-Flow chart;
-Pipeline layout drawing;
-Equipment layout drawing;
-Electrical design regulations.
6.3 Content depth of local lighting conditions
When it is difficult to operate or inspect certain equipment in the device using general lighting methods at night, local lighting should be set, such as local operating positions, local instruments or electrical instrument panels, local liquid level gauges, important operations or frequent patrol areas, etc.
6.3.2 Note the lighting direction of the local lighting, the high and low ranges of the illuminated parts, the illumination, the requirements for lamps, coordinates, etc. 6.3.3
For the content depth of local lighting conditions, please refer to Table 6.3.3 Local lighting conditions table. Table 6.3.3 Local lighting conditions table
Equipment to be illuminated
Attachment name
Equipment number
Level gauge
Coordinates of lighting point (mm)
xxxxxxxxxxxx
Standard lifting net
Elevation range
+800~+1200
conAll kinds of standard industry porcelain materials free download
Direction of lighting
(Based on the north direction 0° of the drawing)
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