Some standard content:
11511999
This standard is a revision of GB151-1989 according to the arrangement of the National Quality and Technical Supervision Bureau's 1993 Standardization Project Plan.
This standard is based on the experience gained since the implementation of GB151-1989 and the needs of the development of domestic shell and tube heat exchangers, and refers to recent international similar standards to make the following changes: 1. The applicable parameters have been revised.
2. Due to the increase of lead copper and titanium heat exchange tubes, the standard name has been changed from "Steel Shell Heat Exchanger" to "Tube-filled Heat Exchanger". 3. The following internal regulations have been added:
Foreword;
Referenced standards:
Appendix C (difficult appendix) Austenitic stainless welded steel pipes for heat exchange tubes: Appendix D (recommended) Design sensitivity data for non-ferrous metal diseases; Appendix K (shown appendix) 4. The following contents in GB 151-1989 are removed: Appendix A expansion joint (supplement); Appendix E threaded heat exchange tube (reference). 5. The calculation formulas for tube sheet of flat tube heat exchanger and floating flange of floating head heat exchanger are modified, and the calculation formula for bridge width is given. 6. Since the difference between 1 and 1 level heat exchangers is only reflected in the back bundle, the 1 and 1 level heat exchangers are reorganized into 1 and 1 level arm bundles. In addition to the above changes, corresponding changes are also made in each chapter. From the date of implementation, this standard will replace Appendix A, Appendix B, Appendix C and Appendix I of GB 151-1989. Appendix E of this standard. Appendix F, Appendix G, Appendix H, Appendix J and Appendix K are all indicative appendices. This standard was proposed by the National Technical Committee on Standardization of Pressure Vessels and drafted by the Heat Exchange Equipment Subcommittee of the National Technical Committee on Standardization of Pressure Vessels. The drafting units and drafters of this standard are: Lanzhou Petroleum Machinery Research Institute of the former Ministry of Machinery; Zhu Ju, Zhang Yanfeng, Ma Xiaozhen; Zheng Tiansun of China Petrochemical Engineering Corporation; Sinopec Luoyang Petrochemical Engineering Company: Sang Taqing, Li Mingwei; Sinopec Beijing Petrochemical 1 Company: Lan Wenqing, Li Shiyu; Sinopec Lanzhou Petrochemical Design Institute: He Yongcai + China Qiuhuan Chemical 1. Company: Hua Youyi: Lanzhou Petrochemical Machinery Plant, Fang Zuci, Li Xiaoyang; Tsinghua University: Huang Kezhi, Xue Mingde
Otsu University: Hong Qingde.
The work units and personnel participating in the preparation of this standard are: Sinopec Planning Institute, Huang Xiurong, Shou Binan, Gu Yuanming, Wang Weiguo, Ye Qianhui; GB151: 1999
China General Petrochemical Machinery Engineering Corporation: Zhang Zhongkao, former Occupational Safety and Health and Steel Furnace Pressure Equipment Supervision Bureau of the Ministry of Labor: Hou Minglie, former Construction Coordination Bureau of the Ministry of Chemical Industry: Liang Zhirun, former Lanzhou Petroleum Machinery Research Institute of the Ministry of Machinery: Ministry Jiandong, Chen Xiaozhou. This standard was first issued in February 1989 and implemented on September 1, 1989; it was revised for the first time in February 1999. The Technical Committee for Standardization of Pressure Vessels is responsible for interpretation. 2
1 Scope
National Standard of the People's Republic of China
Shell and Tube Heat Exchangers
Tuhular heat exchangers
GB 151
Replaces G:R 131-1989
This standard specifies the design, manufacture, inspection and acceptance requirements of non-directly fired shell and tube heat exchangers (hereinafter referred to as "heat exchangers"). 1.1 This standard applies to fixed tube sheet, floating head, U-tube and stuffing box heat exchangers. 1.2 Applicable parameters are
Nominal diameter DN2600mm;
Nominal pressure FN35MPa:
and the product of nominal diameter (mm) and nominal pressure (MPa) is not greater than 1.75×10%. Exceed! Heat exchangers with the above parameters can also be designed and manufactured with reference to this standard. 1.3 The design temperature range applicable to this standard shall be determined according to the allowable operating temperature of the metal material. 1.4 The following types of heat exchangers are not included in this standard: a) Direct flame heated heat exchangers and waste heat boilers; b) Heat exchangers exposed to nuclear radiation;
L) Heat exchangers requiring labor analysis;
d) Heat exchangers that have been governed by other industry standards. Such as some special heat exchangers in the refrigeration, sugar making, paper making, beverage and other industries. 1.5 Heat exchangers with a pressure lower than 0.1MPa and a vacuum degree lower than 0.02MPe can be designed, manufactured, inspected and accepted according to the relevant provisions of JB/T4735 and this standard.
1.6 When the following design methods are used, they must be evaluated and approved by the National Technical Committee for Standardization of Leli Containers. a) Stress analysis (except for units that have obtained the qualification of stress analysis design); b) Confirmatory liquid test
c) Comparative empirical design with comparable structures that have been put into use. 2 Reference standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. The versions shown may be revised. The parties using this standard are encouraged to explore the possibility of using the latest versions of the following standards: GB 1501998
Steel Pressure Vessels
GR/T 229--1S04
GR/T 230-- 1991
G3/I 242 1997
GB/T 690 --1988
GB/T 700--1988
Metal Charpy Notch Impact Test Method
Metal Lumer Hardness Test Method
Metal Pipe Expansion Test Method
Technical Conditions for High-quality Carbon Structural Steel
Carbon Structural Steel
GB/T 12201992
G3/T1221--1952
GB/T1527-1997
Stainless steel
Heat-resistant steel bars
Copper and copper alloy drawn tubes
Approved by the State Administration of Quality and Technical Supervision on February 26, 1999 and implemented on October 1, 20000
GB/ 1804 --1992
GB/T 3077--1988
GR/T 3621-1991
GB/T 3624 --1995
GB/T 3625--1999
GR/T 3880- 1997
GB/76893 -1986
G1/T 8163---1987
GR/T 8165- 1997
G:B/T 8547 -1987
GB/T8890--1998
GB9948-1988
GB 151—1999
General public
Final tolerances of destructive dimensions
Technical conditions for alloy structural steel
Titanium technology Titanium alloy plates
Diamond and titanium alloy properties
Titanium and cobalt alloy tubes for heat exchangers and condensers Aluminium and aluminium alloy rolled plates
Industrial and aluminium alloy drawn () tubes
Smooth seam steel tubes for conveying fluids
Stainless steel composite steel plates and strips
Titanium-steel composite plates
Steel alloy tubes for heat exchangers
Seamless steel tubes for petroleum cracking
GB/T 12771-1991
GB/T 13149
GB/T 13238--1991
GB 13296—-1991
Stainless steel welded steel pipe for conveying fluids
Technical conditions for welding of titanium and titanium alloy composite steel platesCopper-steel composite steel plates
Stainless steel chainless steel pipes for boilers and heat exchangersGB/T 133061991
.Stainless steel seamless steel pipes for conveying fluidsGR/T 14976—1994 #
G3 167/9-1097
JB2536-1980
FB4700—1992
JB 4701—1992
JB 4702-J992
JB 4703-1992
JR4707—1992
JB4708 --1992
Pressure vessel corrugated expansion joint
Painting, packaging and transportation of pressure vessels
Classification and technical conditions of pressure vessel flanges
A flat welding flange
Type welding flange
Long neck butt welding flange
Equal length studs
Qualification of welding technology for steel pressure vessels
J3/T4709.1992
JB/T4712-1992
IR/T 4718--1992
J13/7 4715-- 1992
IB/T 4720-1992||tt| |IB/T 1722-1992
IR/T 4725- 1992
j13 47261994
JB 4727-1994
JH 4728—1994
JB4730—1994
JB 4732 --1995||tt| |33 4733--1996
Welding pillow for steel pressure vessel
Saddle support
Metal-clad gasket for back-shell heat exchanger
Shell and tube heat exchanger Spiral wound gasket for tube heat exchanger
Non-metallic gasket for shell and tube heat exchanger
Basic parameters and technical conditions of butterfly heat exchange tube for shell and tube heat exchanger Carbon steel and low alloy steel forgings for containers Carbon steel and low alloy steel forgings for low temperature pressure vessels Stainless steel forgings for pressure vessels || t t||Nondestructive testing of ductility and capacity
Steel pressure vessels-analysis and design standards
Explosive stainless steel composite steel plates for pressure vessels
1H/T4735:199 Steel welding with pressure 3.1 The design, manufacture, inspection and acceptance of heat exchangers shall comply with the provisions of this standard and GB150 and relevant laws and regulations issued by the state. Regulations,
3.2 Qualifications and responsibilities
GB 151—1999
3.2.1 Qualifications
3.1.1 The design and manufacturing units of heat exchangers must have sound The design unit shall hold a service-level boiler design unit approval13, and the manufacturing unit shall hold a pressure vessel manufacturing license. 3.2.1.2 The design and manufacture of heat exchangers must be approved by the State Quality and Technical Supervision Bureau. Supervision by pressure vessel safety supervision agencies. 3.2.2 Responsibilities
3.2.2.1 Responsibilities of the design unit
3.2.2.1.1 The design unit shall be responsible for the correctness and completeness of the design documents. 3.2.2.1.2 Design documents of heat exchangers At least the design calculation and design drawings shall be included. 3.2.2.1.3 The heat exchanger design drawing shall be stamped with the pressure vessel design unit approval mark. 3.2.2.2 Qualifications of the design unit
3.2.2.2 .1 The manufacturer must manufacture in accordance with the design drawings. If the original design needs to be modified, the approval of the original design unit must be obtained.
3.2.2.2.2 The inspection department of the manufacturer shall inspect and test the heat exchanger in accordance with the provisions of this standard and drawings during the manufacturing process and after completion, provide a report, and 3.2.2.2.3 The manufacturer shall have at least the following technical documents for each heat exchanger product it manufactures. The technical documents shall be kept for at least 7 years. s) Material certification documents and material list: c) Welding process and heat treatment record of heat exchanger: d) The standard allows the manufacturer to select Item day record: e ) Inspection records during and after the heat exchanger manufacturing process; f) Heat exchanger source design drawings and calibration drawings.
3.2.2.2.4: The manufacturer shall obtain the quality confirmation of the heat exchanger by the inspection agency. After meeting the requirements of this standard and drawings, the product quality certificate must be filled in and delivered to the user:
3.3 Scope of heat exchangers
The heat exchangers covered by this standard refer to heat exchangers. The pipe box, shell, tube bundle, head cover) and the pressure-bearing parts connected to the heat exchanger as a whole are limited to the following range.
3.3.1 Connection between heat exchanger and external pipe| |tt||a) The first circumferential joint groove of the welding connection a) the first threaded joint end face of the threaded connection; c) the first flange sealing surface of the flange connection; t) the first sealing surface of the special connector or the connector. 3.3.2 Pipe connection, manhole 3.3.3 Welded joints between non-pressure components and the heat exchanger shell, pipe box, and the inner and outer surfaces of the head cover. Supports, lugs, pads, etc. should also comply with the provisions of this standard or relevant standards. 3.4 The names of the parts and components of the heat exchanger are shown in Cloth 1 and Figures 1 to 6.3.5 The main components of the heat exchanger
The main components of the heat exchanger are the end tube box, shell and rear end structure (including tube bundle) three parts, detailed classification and code see Figure 7: 15
Ping·Yi
Pingyi Xu calcium (components)
Connect Pufa
Tube box Flange
Same clan kidney plate
Asset road let
Offset plate
Female connection
Reinforcement type
Dongguan Ben (Part)
Baffle
Rotary plate
Point holding plateWww.bzxZ.net
Double solid fence or bolt||tt ||External plastic sheet
External benefit side evidence
External cover flange
Gr 151-1999
Vent port
Floating head flange
Spherical cap
Floating joint
Floating head blue (component)||tt| |External head (component)
Drain port
Sportive saddle (component)
Heat exchange camp
Tube bundle (Handan)
Fixed whole Seat (Hao piece)
Pipe box gasket
Pipe hall round tube (short section)
Serial number!
1 head pipe box (part)
sub-range plate
style (component)
expansion (part)
interval block Plate
Shaped heat exchange tube
丨Internal guide
Woven groove partition
Filling point cover
Floating tube plate sample||tt| |Agent shear ring
[Sewage sleeve flange
Core-stitched shell
Liquid level gauge interface
General box gasket
AHSES Floating head heat exchanger
Figure 2 HEM type fixed hip plate type Fast Heater
Figure 3 BIUU Heat Exchanger
Figure 1 AFP Stuffing Box Double Shell Heat Exchanger
151-1999
Figure 5 AKT Stud Reboiler| |tt||Figure 6AW packing rain split type heat exchanger
end tube box solid type
cap box
head tube box
book in detachable The tube bundle and the general plate are made into a sound box, and the tube plate is made into a fixed tube plate box. Leman Box
G 151: 1999
pot type
single-pass hyperthermia
single-approach-single-exit condenser shell
and with a spacer, the effective filling body
Double split
√-shaped heat exchanger
No two-plate split (or condenser shell
Stupid five-boiler
External diversion||tt ||Classification and code of main components
Rear end structure is type
Similar to: A withered tube loss structure
and 13 Similar quality fixed tube structure
and (similar fixed tube core structure
material function floating head
hook type floating head
pull-out type floating head ||tt ||! ||! ||tt| ... Inner diameter of the reading1 Rolled cylinder to read the inner diameter1 Rolled cylinder to read the inner diameter2 The design documents of the heat exchanger shall at least include the design calculation and design drawings. 3.2.2.1.3 The general design drawing of the heat exchanger shall be stamped with the approval mark of the pressure vessel design unit. 3.2.2.2 Qualifications of the manufacturing unit
3.2.2.2.1 The manufacturing unit must manufacture in accordance with the requirements of the design drawings. If the original design needs to be modified, the approval of the original design unit shall be obtained.
3.2.2.2.2 The inspection department of the manufacturer shall inspect and test the heat exchanger in accordance with the provisions of this standard and drawings during the manufacturing process and after completion, provide reports, and be responsible for the correctness and completeness of the reports. 3.2.2.2.3 The manufacturer shall have at least the following technical documents for each heat exchanger product it manufactures. The technical documents shall be kept for at least 7 years:
) Manufacturing process drawings or manufacturing process cards;
s) Material certification documents and material lists;
c) Welding process and heat treatment process records of heat exchangers; d) Records of items that the manufacturer is allowed to select in the standard; e) Records of items that the manufacturer is allowed to select in the standard; ) Inspection records during and after the manufacturing process of the heat exchanger; f) Heat exchanger source design drawings and calibration drawings.
3.2.2.2.4: After the manufacturer obtains confirmation from the inspection agency that the quality of the heat exchanger meets the requirements of this standard and drawings, it must fill out the product quality certificate and deliver it to the user:
3.3 Scope of heat exchanger
The heat exchanger covered by this standard refers to the heat exchanger (tube box, shell, tube bundle, head cover) and the pressure-bearing parts connected to the heat exchanger as a whole, which are limited to the following scope.
3.3.1 Connection between heat exchanger and external pipeline
a) The first annular joint groove of the welded connection End face; b) The end face of the first threaded joint of the threaded connection; c) The first flange sealing surface of the flange connection; t) The first sealing surface of the special connector or the fitting connection. 3.3.2 Pressure-bearing heads, flat covers and their fasteners for connecting pipes, manholes, hand sanitizers, etc. 3.3.3 Welded joints between non-pressure components and the shell, pipe box, and the inner and outer surfaces of the head cover of the heat exchanger. Components other than joints such as supports, lugs, gaskets, etc. should also comply with the provisions of this standard or corresponding standards. 3.4 The names of the parts and components of the heat exchanger are shown in Clothing 1 and Figures 1 to 6.3.5 The main components of the heat exchanger
The main components of the heat exchanger are the end pipe box, shell and rear end structure (including tube bundle) three parts, detailed classification and code see Figure 7: 15
Ping·Yi
Pingyi Xu calcium (components)
Connection
Tube box flange
Tongzong kidney plate
Zi Ti road let
Offset plate
Female connection
Reinforcement type
Guangzhou (Department)
Baffle
Rotary tube
Point holding plate
Double real railing or bolts
External plastic sheet
External real benefit side forensics
External cover flange
Gr 151-1999
Vent
Floating head flange
Spherical crown head
Floating joint
Floating head flange (component)
External head flange (component)
Drain port
Movable saddle (component)
Heat exchange camp
Tube bundle (Handan)
Fixed seat (Hao component)
Tube box gasket
Tube hall round tube (short joint)
Serial number!
1 Head tube box (part)
Separation plate
Model (component)
Expansion plate (part)
Internal baffle
Formed heat exchange tube
Inner guide
Weave groove partition
Filling point cover
Floating tube plate sample
Agent shear ring
[Sewage sleeve flange
Heart staggered shell
Liquid level gauge interface
General box example gasket
AHSES floating head heat exchanger
Figure 2 HEM Wen type fixed hip plate type Quick Heater
Figure 3BIUU Heat Exchanger
Figure 1AFP Stuffing BoxDouble Shell Heat Exchanger
151-1999
Figure 5AKT Signature Reboiler
Figure 6AW Stuffing Rain Split Flow Heat Exchanger
End Tube BoxSolid Type
Cap Box
Head Tube Box
Book with Removable Tube Bundle and General Plate
Made into One
Sound Box
Integrated with Tube Plate
Fixed Tube Plate Tube Box
Selection and Busy Box
G 151: 1999
pot-type
single-pass heat exchanger
single-pass single-pass condenser shell
and with a spacer, through-plate effect
double-flow
√-shaped heat exchanger
without two-plate flow separation (or condenser shell
silent five-boiler
external flow diversion
classification and code of main components
rear-end structure is
and: A similar withered tube loss structure
and 13 Similar fixed tube structure
and (similar fixed tube core structure
material type float
hook type float
pull-out type float
! Solid beam
type float with variable environment material
3.6 Nominal diameter
GR 151: 1999
3.6.1 Inner diameter of rolled cylinder2 The design documents of the heat exchanger shall at least include the design calculation and design drawings. 3.2.2.1.3 The general design drawing of the heat exchanger shall be stamped with the approval mark of the pressure vessel design unit. 3.2.2.2 Qualifications of the manufacturing unit
3.2.2.2.1 The manufacturing unit must manufacture in accordance with the requirements of the design drawings. If the original design needs to be modified, the approval of the original design unit shall be obtained.
3.2.2.2.2 The inspection department of the manufacturer shall inspect and test the heat exchanger in accordance with the provisions of this standard and drawings during the manufacturing process and after completion, provide reports, and be responsible for the correctness and completeness of the reports. 3.2.2.2.3 The manufacturer shall have at least the following technical documents for each heat exchanger product it manufactures. The technical documents shall be kept for at least 7 years:
) Manufacturing process drawings or manufacturing process cards;
s) Material certification documents and material lists;
c) Welding process and heat treatment process records of heat exchangers; d) Records of items that the manufacturer is allowed to select in the standard; e) Records of items that the manufacturer is allowed to select in the standard; ) Inspection records during and after the manufacturing process of the heat exchanger; f) Heat exchanger source design drawings and calibration drawings.
3.2.2.2.4: After the manufacturer obtains confirmation from the inspection agency that the quality of the heat exchanger meets the requirements of this standard and drawings, it must fill out the product quality certificate and deliver it to the user:
3.3 Scope of heat exchanger
The heat exchanger covered by this standard refers to the heat exchanger (tube box, shell, tube bundle, head cover) and the pressure-bearing parts connected to the heat exchanger as a whole, which are limited to the following scope.
3.3.1 Connection between heat exchanger and external pipeline
a) The first annular joint groove of the welded connection End face; b) The end face of the first threaded joint of the threaded connection; c) The first flange sealing surface of the flange connection; t) The first sealing surface of the special connector or the fitting connection. 3.3.2 Pressure-bearing heads, flat covers and their fasteners for connecting pipes, manholes, hand sanitizers, etc. 3.3.3 Welded joints between non-pressure components and the shell, pipe box, and the inner and outer surfaces of the head cover of the heat exchanger. Components other than joints such as supports, lugs, gaskets, etc. should also comply with the provisions of this standard or corresponding standards. 3.4 The names of the parts and components of the heat exchanger are shown in Clothing 1 and Figures 1 to 6.3.5 The main components of the heat exchanger
The main components of the heat exchanger are the end pipe box, shell and rear end structure (including tube bundle) three parts, detailed classification and code see Figure 7: 15
Ping·Yi
Pingyi Xu calcium (components)
Connection
Tube box flange
Tongzong kidney plate
Zi Ti road let
Offset plate
Female connection
Reinforcement type
Guangzhou (Department)
Baffle
Rotary tube
Point holding plate
Double real railing or bolts
External plastic sheet
External real benefit side forensics
External cover flange
Gr 151-1999
Vent
Floating head flange
Spherical crown head
Floating joint
Floating head flange (component)
External head flange (component)
Drain port
Movable saddle (component)
Heat exchange camp
Tube bundle (Handan)
Fixed seat (Hao component)
Tube box gasket
Tube hall round tube (short joint)
Serial number!
1 Head tube box (part)
Separation plate
Model (component)
Expansion plate (part)
Internal baffle
Formed heat exchange tube
Inner guide
Weave groove partition
Filling point cover
Floating tube plate sample
Agent shear ring
[Sewage sleeve flange
Heart staggered shell
Liquid level gauge interface
General box example gasket
AHSES floating head heat exchanger
Figure 2 HEM Wen type fixed hip plate type Quick Heater
Figure 3BIUU Heat Exchanger
Figure 1AFP Stuffing BoxDouble Shell Heat Exchanger
151-1999
Figure 5AKT Signature Reboiler
Figure 6AW Stuffing Rain Split Flow Heat Exchanger
End Tube BoxSolid Type
Cap Box
Head Tube Box
Book with Removable Tube Bundle and General Plate
Made into One
Sound Box
Integrated with Tube Plate
Fixed Tube Plate Tube Box
Selection and Busy Box
G 151: 1999
pot-type
single-pass heat exchanger
single-pass single-pass condenser shell
and with a spacer, through-plate effect
double-flow
√-shaped heat exchanger
without two-plate flow separation (or condenser shell
silent five-boiler
external flow diversion
classification and code of main components
rear-end structure is
and: A similar withered tube loss structure
and 13 Similar fixed tube structure
and (similar fixed tube core structure
material type float
hook type float
pull-out type float
! Solid beam
type float with variable environment material
3.6 Nominal diameter
GR 151: 1999
3.6.1 Inner diameter of rolled cylinder5. The main components of the heat exchanger
The main components of the heat exchanger are the end tube box, the shell and the rear end structure (including the tube bundle). The detailed classification and code are shown in Figure 7: 15
Ping·Yi
Pingyi Xu calcium (components)
Connection
Tube box flange
Same clan kidney plate
Tilt road
Offset plate
Female connection
Reinforcement type
Guangzhou (Department)
Baffle
Rotary tube
Point holding plate
Double real railing or bolts
External plastic sheet
External real benefit side certificate
External cover flange
Gr 151-1999
Vent
Floating head flange
Spherical crown head
Floating joint
Floating head flange (component)
External head flange (component)
Drain port
Movable saddle (component)
Heat exchange camp
Tube bundle (Handan)
Fixed seat (Hao component)
Tube box gasket
Tube hall round tube (short joint)
Serial number!
1 Head tube box (part)
Separation plate
Model (component)
Expansion plate (part)
Internal baffle
Formed heat exchange tube
Inner guide
Weave groove partition
Filling point cover
Floating tube plate sample
Agent shear ring
[Sewage sleeve flange
Heart staggered shell
Liquid level gauge interface
General box example gasket
AHSES floating head heat exchanger
Figure 2 HEM Wen type fixed hip plate type Quick Heater
Figure 3BIUU Heat Exchanger
Figure 1AFP Stuffing BoxDouble Shell Heat Exchanger
151-1999
Figure 5AKT Signature Reboiler
Figure 6AW Stuffing Rain Split Flow Heat Exchanger
End Tube BoxSolid Type
Cap Box
Head Tube Box
Book with Removable Tube Bundle and General Plate
Made into One
Sound Box
Integrated with Tube Plate
Fixed Tube Plate Tube Box
Selection and Busy Box
G 151: 1999
pot-type
single-pass heat exchanger
single-pass single-pass condenser shell
and with a spacer, through-plate effect
double-flow
√-shaped heat exchanger
without two-plate flow separation (or condenser shell
silent five-boiler
external flow diversion
classification and code of main components
rear-end structure is
and: A similar withered tube loss structure
and 13 Similar fixed tube structure
and (similar fixed tube core structure
material type float
hook type float
pull-out type float
! Solid beam
type float with variable environment material
3.6 Nominal diameter
GR 151: 1999
3.6.1 Inner diameter of rolled cylinder5. The main components of the heat exchanger
The main components of the heat exchanger are the end tube box, the shell and the rear end structure (including the tube bundle). The detailed classification and code are shown in Figure 7: 15
Ping·Yi
Pingyi Xu calcium (components)
Connection
Tube box flange
Same clan kidney plate
Tilt road
Offset plate
Female connection
Reinforcement type
Guangzhou (Department)
Baffle
Rotary tube
Point holding plate
Double real railing or bolts
External plastic sheet
External real benefit side certificate
External cover flange
Gr 151-1999
Vent
Floating head flange
Spherical crown head
Floating joint
Floating head flange (component)
External head flange (component)
Drain port
Movable saddle (component)
Heat exchange camp
Tube bundle (Handan)
Fixed seat (Hao component)
Tube box gasket
Tube hall round tube (short joint)
Serial number!
1 Head tube box (part)
Separation plate
Model (component)
Expansion plate (part)
Internal baffle
Formed heat exchange tube
Inner guide
Weave groove partition
Filling point cover
Floating tube plate sample
Agent shear ring
[Sewage sleeve flange
Heart staggered shell
Liquid level gauge interface
General box example gasket
AHSES floating head heat exchanger
Figure 2 HEM Wen type fixed hip plate type Quick Heater
Figure 3BIUU Heat Exchanger
Figure 1AFP Stuffing BoxDouble Shell Heat Exchanger
151-1999
Figure 5AKT Signature Reboiler
Figure 6AW Stuffing Rain Split Flow Heat Exchanger
End Tube BoxSolid Type
Cap Box
Head Tube Box
Book with Removable Tube Bundle and General Plate
Made into One
Sound Box
Integrated with Tube Plate
Fixed Tube Plate Tube Box
Selection and Busy Box
G 151: 1999
pot-type
single-pass heat exchanger
single-pass single-pass condenser shell
and with a spacer, through-plate effect
double-flow
√-shaped heat exchanger
without two-plate flow separation (or condenser shell
silent five-boiler
external flow diversion
classification and code of main components
rear-end structure is
and: A similar withered tube loss structure
and 13 Similar fixed tube structure
and (similar fixed tube core structure
material type float
hook type float
pull-out type float
! Solid beam
type float with variable environment material
3.6 Nominal diameter
GR 151: 1999
3.6.1 Inner diameter of rolled cylinderAs the nominal diameter of the quick heat exchanger: 3.6.2 Steel cylinder with the outer diameter of the boiler tube (mm) as the nominal diameter of the heat exchanger 3.7 Heat receiving area A
3.7.1 Calculation of heat exchange area Take the outer diameter of the heat exchange tube as the standard, deduct the length of the heat exchange tube extending into the tube sheet, and calculate the surface area of the tube bundle; for the "UI-shaped ridge heat exchange group, generally does not include the area of the L: deformation tube section, m. 3.7.2 Nominal heat exchange area Calculation of heat exchange area after net adjustment, m3.8 Nominal length LN
The length of the heat exchange tube (m) is taken as the standard length of the heat exchanger. When the heat exchange tube is a straight tube, the length of the straight tube is taken; when the heat exchange tube is a U-shaped tube, the length of the U-shaped tube section is taken.
3.9 Shell and shell pass
3.9.1 The shell pass refers to the channel through which the medium flows through the heat exchange tube and the part that is connected with it. 3.9.2 The shell pass refers to the channel through which the medium flows outside the heat exchange tube and the part that is connected with it. The tube pass number N refers to the number of times the medium goes back and forth along the length of the heat exchange tube. 3. 9. 3
3.9.4 The number of completed passes N. refers to the number of times the medium falls in the shell axial direction and returns in the shell. 310 Heat exchanger model indication method
This indication method is applicable to horizontal and ventilated heat exchangers. XADN-E-AN
1 (")
When using carbon solution and low alloy steel cold-drawn steel pipes for heat exchange, the bundle is divided into two stages;
" grade belt depth uses a higher grade, and the higher grade cold-drawn steel pipe is replaced by the second grade.
Please use ordinary grade cold-drawn steel pipes
Tube/running number, only write N
LN nominal heat exchanger length (tn>+d-heat exchange tube outer diameter (mm). When using Al.cu and Ti heat exchange tubes, it should be added in, V/pass and material symbol: such as LN/dC11 nominal heat exchange area (m)
Replace the process pressure [MI), the pressure is equal to P nominal diameter (mm), for the signature type, the numerator is the general box inner diameter, the center is the national simplified inner diameter
The first letter represents the front tube pin type
The second letter represents the filling type
The third letter represents the rear end structure type
Example:
(see figure)
a) Net head heat exchanger
Flat cover tube box, nominal diameter 500tmtn, tube side and shell side design pressure are 1.6MIa, nominal heat transfer area 54m. Carbon steel commercial grade refrigeration technology heat exchange tube outer diameter 25mm, tube length 6m, 1 tube pass, unit pass floating head heat exchanger, its model is: 641
AE5 500.1.6-51--
b) Fixed tube sheet heat exchanger
Tube box - nominal diameter 700mml, design pressure 2.5MPa, design pressure 1: KMP, nominal heat exchange 200m\magnetic steel high-grade cold-drawn heat exchange tube outer price 25mm, tube length 9m, 1 tube pass, single shell release fixed tube sheet heat exchanger, its type book is:) Tube fast heat exchanger
GB 151--1999
REM709
Head tube box, nominal diameter 5cmoni, tube design pressure 4.0MPa, end design pressure 1.6MPa, nominal heat exchange area 75tl, stainless steel cold-drawn heat exchange tube outer diameter 13mm1m. Tube length 6m+2 arm, single shell pass dead tube heat exchanger. Its model is: 1
BIL:SO
d signature heavy frost
flat cover tube box tube box inner diameter 690mm, [Micro inner diameter 120mm, tube design pressure 2.5MPa, shell design positive pressure 1.0M1a, nominal heat exchange area 9Cm, carbon steel ordinary grade cold-drawn heat exchange tube outer diameter 25mm, tube length 6t1.2 tube-pass signature reboiler, its model is:
() Nietou condenser
600902
AKT1200
head tube box. Nominal diameter 1200m1m, tube design pressure 2.5MFa, full release design F pressure 1.0MP., nominal heat exchange area 610n*, carbon example ordinary grade cold drawn heat exchange tube outer diameter 25mm1, tube length m.4 tube pass. Single shell floating head test condenser, its model is: 610-No.
BIS1200-0
[Block material function heat exchanger
Pingyi tube box: nominal diameter 600mm. Tube pass and end design non-force are 7.CM. Nominal heat exchange area 90m, 16Mm commercial grade cold drawn heat exchange tube outer diameter 25mrm. Tube length 6m, 2-pass, 2-shell-pass filled two-floating head heat exchanger, its model is: 6.8)
AFP600-1.C-02
g) Fixed tube plate copper tube heat exchanger
Head tube box, nominal self-diameter 8GOIIn, tube side and shell side design E force are (.6MPa, nominal heat exchange area J50m°, higher-grade ItsA copper heat exchanger back, outer diameter 22m1m, tube length 6m, 4 tube passes, single-pass fixed back plate heat exchanger, its model is: BEM800-0. 4-150.
Except where otherwise specified, tension refers to gauge pressure. 11-5
3.11.1 "1 Operating pressure"
1 Operating pressure refers to the maximum pressure that may be reached at the top of the heat exchanger tube under normal operating conditions. 3. 11. 2 Design output
Design pressure refers to the maximum pressure set in the tube and shell of the heat exchanger, which is used as the design load condition together with the corresponding design temperature, and its value shall not be lower than the "working pressure".
For components that are temporarily subjected to tube and shell pressure, they can only be designed according to the difference when it can be guaranteed that the tube and shell pressures rise and fall at the same time. Otherwise, the design pressure should be determined according to the tube and shell pressures respectively, and the possible sensitive tube and shell pressure limit combinations should be considered. When designing by pressure, the cancellation of pressure difference should also consider the maximum pressure difference value that may occur during the pressure test. At the same time, the designer should propose the pressure test procedure. The design pressure of the vacuum side of the vacuum heat exchanger is directly considered. When a safety control device (such as a vacuum relief valve) is installed, the design pressure is 1.25 times the maximum internal and external pressure difference or 0.1MP, whichever is lower. When there is no safety control device, 0.1MIa is taken. For the non-vacuum side of the vacuum heat exchanger, the element that is still subject to the pressure of the entire process, the design pressure should be the sum of the internal pressure side and the air side design pressure. 3.11.3 Square force refers to the pressure used to determine the thickness of the heat exchanger element at the corresponding design temperature, which includes the static pressure of the liquid column. When the element is 1.2
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