HG/T 2736-1995 Graphite three-in-one hydrochloric acid synthesis furnace HG/T2736-1995 standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2736—1995
Three-in-one hydrochloric acid synthesis furnace made of graphite
1995—07—05 Issued
Ministry of Chemical Industry of the People's Republic of China
Implementation on the standard exchange network mbao.cca1996—03-01
Chemical Industry Standard of the People's Republic of China
Three-in-one hydrochloric acid synthesis furnace made of graphite
Subject content and scope of application
HG/T 2736-—1995
This standard specifies the structural type, specifications and dimensions, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements of three-in-one hydrochloric acid synthesis furnaces made of round block impermeable graphite materials. This standard applies to stone-made three-in-one hydrochloric acid synthesis furnaces (hereinafter referred to as three-in-one furnaces) that use nitrogen, hydrogen, water or dilute hydrochloric acid as raw materials and integrate synthesis, absorption and cooling processes to produce hydrochloric acid. 2 Reference standards
HG2370 Technical conditions for graphite chemical equipment HGJ45 Raised face plate type flat welding steel pipe flange
Raised face flat welding ring loose sleeve plate type steel pipe flange HGJ57
3 Structural type, specification size, marking
3.1 Structural type See Figure 1.
3.2 Specifications and dimensions See Table 1.
3.3 Connection and use of pipe ports See Table 2.
3.4 ​​Marking.
Inner diameter of graphite body in synthesis section (cm)
Three-in-one furnace
Impermeable graphite material
Example:
The inner diameter of the graphite body in the synthesis section is 500mm, and the output is 30-40t/d. The three-in-one hydrochloric acid synthesis furnace made of graphite is marked as SHL-50. The Ministry of Chemical Industry of the People's Republic of China approved the standard on July 5, 19895.mm.bzzono.cm and implemented on March 1, 1996
2. Separation plate
2736—1995||tt ||3. Synthesis section
4. Absorption section
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6. Separator
Dr(mm)
*OutputwwW.bzxz.Net
SHL-30
SHL-40
2736—1995
Table 1 Specifications and dimensions
SHL-50
SHL-60
SHL-70
*The output is calculated based on ten absorption unit blocks and 33% hydrochloric acid concentration. Table 2 Connection and use of pipe outlets
Connection form
Product acid
Jacket discharge
SHL-80
Water or dilute
Acid inlet
Cooling water
SHL-90
Cooling water
SHL-100
90-105
Hydrochloric acid discharge
45 uses PN1.0MPa flange, and the flanges of other pipe outlets are PN1.0MPa according to standard HGJ57. The flanges of other pipe outlets are PN1.0MPa according to standard HGJ.
Technical requirements
4.1 Design parameters.
4.1.1 Design pressure
Material system: ≤0.IMPa
Cooling system: ≤0.3MPa
Design temperature.
Graphite body ≤150℃
Hydrochloric acid outlet: ≤50℃
Cooling water outlet: 40℃
4.2 Materials
The properties of the steel shell and stone materials used shall comply with the provisions of 3.1 and 3.2 of HG2370. 4.2.1
4.2.2 The graphite furnace body is impregnated with phenolic resin. 4.2.3 The explosion-proof membrane can be made of impermeable stone or other corrosion-resistant materials. The explosion pressure of the explosion-proof membrane is 0.5 times the design pressure of the material system of the synthesis furnace.
4.3 Parts
The processing of graphite parts shall comply with the provisions of 3.2 of HG2370. The diameter deviation of each sealing surface of the graphite parts is ±0.5mm, and the parallelism deviation of each sealing surface of the stone wing parts is 0.5mm. The verticality deviation of the stone parts is ±0.5mm. 4.3.3
4.3.4 The center distance deviation of two adjacent holes in the same direction on the graphite unit block is ±0.5mm, and the center distance deviation of any two holes in the same direction is ±1.0mm. 4.3.5 The concentricity of the two ends of the same hole of the graphite unit block is not greater than 1.0mm. 4.3.6 The blocking rate of the graphite unit block: only the cooling medium hole is allowed to be blocked, and the blocking rate should not be greater than 1%. After blocking, the cooling medium hole area is not less than the material medium hole area.
Standard replacement damage bzmmoccm Various standards industry data competitive download HG/T2736-1995
4.3.7 The height deviation of the V-shaped cut of the distributor is not greater than ±0.5mm. 4.3.8 The whole stone parts shall be subjected to a single water pressure test before assembly, and no leakage shall be allowed. . Assembly
4.4.1 The assembly shall comply with the provisions of 3.3.3 of HG2370. 4.4.2 The distributor must be installed perpendicular to the surface of the absorbent block, and the lower line of the V-shaped cut must be on the same water level. After the absorber is installed, a water addition test must be carried out to adjust the height of the V-shaped cut. 4.4.3 The horizontal deviation of the distributor plate is ±1mm. 4.5 Appearance
4.5.1 The weld of the steel shell shall be polished and smooth, and there shall be no defects such as burrs, bumps, etc.; the paint film shall be firm and uniform, and there shall be no defects such as missing coating, bubbling, peeling, etc. that affect the appearance.
4.5.2 After the equipment is assembled, the exposed graphite body shall not have defects such as falling blocks and resin tumors that affect the appearance. 4.8 After assembly, a water pressure test must be carried out, and all parts bonding and sealing parts shall not leak. 4.7 In addition to complying with the provisions of this standard, manufacturing shall also comply with the requirements of the drawings. 5 Test methods
5.1 The physical and mechanical properties of the material shall be tested in accordance with the methods specified in 4.1 to 4.4 of HG2370. 5.2 The horizontality of the liquid separation plate shall be checked with a level. 5.3 The geometric dimensions of the equipment shall be measured with a steel measuring tool. 5.4 The water pressure test pressure of the stone-shaped parts shall be 1.5 times the design pressure and the pressure shall be maintained for 30 minutes. 5.5 The overall water pressure test shall be carried out in accordance with the method specified in 4.5 of HG2370. 5.8 The appearance shall be inspected by visual inspection.
6 Inspection rules
The inspection rules for synthesis furnace equipment shall be carried out in accordance with the provisions of Chapter 5 of HG2370. 7 Marking, packaging, transportation, compensation and storage
7.1 Marking, packaging and transportation shall be carried out in accordance with the provisions of Chapter 6 of HG2370. 7.2 When storing, appropriate places should be selected and obvious signs should be placed to avoid impact. It is strictly forbidden to flood or store water in the equipment. It is not allowed to be stored for a long time in a high temperature or low temperature environment below -30℃. Additional remarks:
This standard is proposed by China National Chemical Equipment Corporation and is under the jurisdiction of the National Technical Committee for Standardization of Non-metallic Chemical Equipment. This standard was drafted at the expense of Liaoyang Carbon Factory and the Chemical Machinery Research Institute of the Ministry of Chemical Industry. The main drafters of this standard are: Meng Xiande, Yang Liping, and Li Yongsheng. 4.
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People's Republic of China
Chemical industry standards
Shi Yi three-in-one hydrochloric acid synthesis furnace
HG/T 2736-95
Edited by China Chemical Equipment Corporation
Postal code: 100011
Printed by Beijing University of Chemical Technology
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First edition in March 1996
No reproduction
9.0 thousand words
First printing in March 1996
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