GBJ 114-1988 Heating, ventilation and air conditioning drawing standard GBJ114-88 GBJ114-1988 standard download decompression password: www.bzxz.net

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National Standard of the People's Republic of China
Heating, Ventilation and Air Conditioning
Drawing Standard
GBJ114—88
1989Beijing
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National Standard of the People's Republic of China
Heating, Ventilation and Air Conditioning Drawing Standard
GBJ114—88
Editor Department: Urban and Rural Construction of the People's Republic of China Ministry of Environmental Protection Approval department: State Planning Commission of the People's Republic of China Effective date: August 1, 1988
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Notice on the release of "Heating, Ventilation and Air Conditioning Drawing Standards"
Ji Biao [1988] No. 19
According to the requirements of the former State Construction Commission (81) Jianfa Shezi No. 546, the Ministry of Urban and Rural Construction and Environmental Protection, together with relevant departments, revised the "Architectural Drawing Standards" GBJ1-73. The revised "Architectural Drawing Standards" are divided into six separate national standards, of which five national standards such as "Housing Architectural Drawing Unified Standards" GBJ1-86 have been approved for release, and the "Heating, Ventilation and Air Conditioning Drawing Standards" have also completed the revision work and have been reviewed by relevant departments. The "Heating, Ventilation and Air Conditioning Drawing Standard" GBJ114-88 is now approved as a national standard, which will be implemented on August 1, 1988, and the original "Architectural Drawing Standard" GBJ1-73 will be abolished at the same time. This standard is managed by the Ministry of Urban and Rural Construction and Environmental Protection. Its specific interpretation and other work are the responsibility of the China Building Standard Design Institute. The publication and distribution is the responsibility of China Planning Press. State Planning Commission
January 6, 1988
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Revision Notes
This standard is based on the "Notice on the Compilation and Revision Plan of National Standards and Regulations for Engineering Construction from 1982 to 1985" issued by the former State Construction Commission (81) Jianfashezi No. 546, and is compiled by the China Building Standard Design Institute of our Ministry in conjunction with the North China Electric Power Design Institute of the Ministry of Water Resources and Electric Power and the Sichuan Provincial Building Survey and Design Institute. This standard is compiled on the basis of the original "Architectural Drawing Standard" GBJ1-73, and is a content not specified in the original standard. In the process of compiling this standard, we carefully summarized our practical experience, combined with our actual situation, actively adopted international standards, and widely solicited relevant design, construction, scientific research, and higher education institutions across the country. The opinions of colleges and other units were finally reviewed and finalized by our department in conjunction with relevant departments. This standard is divided into six chapters, and the main contents are: general principles, general provisions, legends, basic provisions for drawing, heating drawing methods, ventilation and air-conditioning drawing methods, etc. This standard should be used in conjunction with the "Uniform Standard for Building Drawing". In the process of implementing this standard, please combine engineering practice, carefully summarize experience, and pay attention to accumulating information. If you find that there is a need for modification or supplement, please send your opinions and information to the China Building Standard Design Institute for reference during revision. Ministry of Urban and Rural Construction and Environmental Protection
December 1987
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Chapter 1
Chapter 2
General Provisions·
Section 1
Section 2
Chapter 3
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Section 10
Pipes and accessories
Heating equipment
Ventilation pipe fittings
Ventilation and air conditioning valves
Ventilation and air conditioning equipment·www.bzxz.net
Control and regulation execution Mechanism
Sensor element
Chapter 4
Chapter 5
Basic provisions for drawing
How to draw heating drawings
Section 1
Section 2
Section 3
Section 4
Elevation and slope
Methods for indicating pipe turns, connections and intersections. Methods for marking pipe diameters and system numbers
Plane drawing.
Section 5 System diagram·
Chapter 6 Drawing methods of ventilation and air conditioning drawings
Section 1 Plan, section and detailed drawings
Section 2 System diagram·
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Section 3 Schematic diagram·
Appendix Explanation of terms used in this standard
Additional instructions
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Engineering construction standard full text information system
Chapter 1 General
Article 1.0.1 This standard is formulated to make the professional drawings of heating, ventilation and air conditioning (hereinafter referred to as heating and ventilation) basically unified, clear and concise, improve the efficiency of drawing, meet the requirements of design, construction, archiving, etc., and adapt to the needs of engineering construction. Article 1.0.2 This standard applies to the following engineering drawings for indoor heating, ventilation and air conditioning:
1. Design drawings and completion drawings of new, rebuilt and expanded projects at various stages; 2. Measured drawings of existing buildings and structures; 3. General drawings and standard drawings.
Article 1.0.3 In addition to complying with the provisions of this standard, the professional drawings of heating and ventilation shall also comply with the provisions of the "Uniform Standard for Building Drawings" GBJ1-86 and the relevant standards and specifications currently in force in the country.
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Engineering Construction Standards Full-text Information System
Chapter 2
General Provisions
Section 1 Drawings
Article 2.1.1 The width b of the drawing line shall be selected according to the proportion and category of the drawing and the provisions of "Drawing Lines" in the "Uniform Standard for Building Drawings" GBJ1-86. Article 2.1.2 The various line types used in the drawing of heating and ventilation specialty should comply with the provisions of Table 2.1.2.
Thick solid line
Medium solid line
Thin solid line
Thick dashed line
Medium dashed line
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1. Heating water supply, steam supply main pipe, riser
2. Air duct and component outline line
3. Pipeline in system diagram
4. Index marking line of equipment and component number 5. External contour line of non-standard components
1. Radiator and radiator connecting branch line
2. Office corridor line of heating, ventilation and air conditioning equipment 3. Flange line of air duct||t t||1. Civil engineering contour lines in plan and section drawings
2. Dimension lines, dimension boundaries
3. Material legend lines, lead lines, elevation symbol lines1. Heating return pipes, condensate pipes
2. Inner surface contour lines of non-metallic air ducts (brick and concrete air ducts) in plan and section drawings
Contour lines of the blocked parts of the air duct
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Thin dotted lines
Double points
Break lines
Wavy lines
Article 2.2.1
Provisions of 2.2.1.
General plan
Pipes in the general plan
Sectional view
Plan, section view
and enlarged view
1. Original air duct outline
Heating trench
3. Outline of the blocked part of the process equipment1. Equipment center line and axis
2. Air duct and component center line
Positioning axis
Outer wheel mat line of process equipment
1. Disconnection boundary that does not need to be drawn in full
2. Disconnection boundary of structural level
Section 2
Heating The proportion selected for ventilation professional drawing should conform to the table ratio
Common proportion
1:500,11000
1:50,1:100,1:200
1:20,1:50,1:100
1:11:2,1:5,110,120
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111500
Available proportion
1+30,140,1150,1200
1:3,1:4,1:15
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Chapter 3
Section 1
Water Supply (Steam) Pipe
Return (Condensate) Pipe
Insulation Pipe
Square Expansion Joint
Casing Expansion Joint
Corrugated Expansion Joint
Arc Expansion Joint
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Pipeline and Accessories
For Only One Type of Pipe in One Drawing
Use Chinese Pinyin Headers to Indicate Pipeline
Use Legends to Indicate Pipeline Categories
Available Description Code
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Spherical expansion joint
Sliding bracket
Fixed bracket
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Left picture: single tube
Right picture: multi-tube
Section 1 Continuation Table
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Heat dissipation and air vent door
Manual exhaust valve
Automatic exhaust valve
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Section 2
Left side: low pressure
Right side: high pressure
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