This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of electric heating steam generators. This standard applies to electric heating steam generators used in the clothing and other industries. QB/T 1485-1992 Electric Heating Steam Generator QB/T1485-1992 Standard download decompression password: www.bzxz.net

Light Industry Industry Standard of the People's Republic of China
Electrically heated steam generator
Subject content and scope of application
QB/T 1485—1992
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of electrically heated steam generators.
This standard applies to electrically heated steam generators used in clothing and other industries. Reference standards
GB 191
Packaging, storage and transportation pictorial marking
GB/T5226 General technical conditions for electrical equipment of machine tools 3 Terms
3.1 Steam production: The mass of water evaporated per unit time under constant pressure conditions 3.2 Heating container: A container for holding water and equipped with a metal tubular heater. 4 Product classification
4.1 Type
The heating container heats soft water to produce steam of a certain pressure and has water level regulation, pressure regulation and overpressure protection devices. 4.2 Classification
According to the water supply method to the heating container, it can be divided into: a.
Automatic water adding type;
b. Manual water adding type.
4.3 Main technical parameters
The main technical parameters are shown in Table 1.
Steam output
Working pressure
4.4 Model
The model compilation regulations are as follows:
The Ministry of Light Industry of the People's Republic of China approved it on April 14, 1992.
2.45.47.2
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21. 625.228. 8
1992-12-01
5 Technical requirements
5.1 Appearance quality
QB/T 1485—1992
Improve the design sequence number, use Arabic numerals to represent the main technical parameter code, use power values ​​to represent the classification code, use the first letter "R" or "D" of the Chinese pinyin of "人" and "自" in manual water addition and automatic water addition to represent the name code, and "DZF" are the first letters of the Chinese pinyin of "电", "蒸" and "发" respectively. 5.1.1 The surface of the painted parts should be flat and uniform in color, and there should be no obvious defects such as flow marks, bubbles, residues and magnetic damage in the main visible parts. 5.1.2 The nameplate should have clear graphics and text, correct position, and no obvious scratches. 5.1.3 The surface of the electroplated parts should be flat and smooth, with uniform color, and should not have defects such as missing plating, peeling, spots, abrasions and rust. 5.1.4 The surface of the oxidized parts should have a uniform color and should not There are defects such as blanks, light spots of sediment, scratches and rust. 5.2 Safety performance
5.2.1 The heating container should be produced by a unit with a pressure vessel manufacturing license and be accompanied by a quality certificate. 5.2.2 The insulation resistance value should not be less than 1MQ. 5.2.3 The electrical equipment can withstand the pressure test without flashover and breakdown. 5.2.4 The safety valve should be able to release steam when the machine reaches the specified pressure value. 5.3 Working performance
5.3.1 The steam production within the working pressure range of 0.3±0.02MPa should not be less than that specified in Table 1. 5.3.2 The automatic control device of water level and pressure should be sensitive to response and operate correctly and reliably. 5.3.3 There should be no leakage in each pipeline.
5.3 .4 The opening and closing of the valve should be flexible and reliable. 6 Test methods
6.1 Test methods in Article 5.1 of this standard
Self-inspection.
6.2 Test methods in Article 5.2.1 of this standard
Check the "quality guarantee certificate".
6.3 Test methods in Article 5.2.2 of this standard
Carry out in accordance with the method in Article 13.1 of GB/T5226. 6.4 Test methods in Article 5.2.3 of this standard
Carry out in accordance with the method in Article 13.2 of GB/T5226. 6.5 Test methods in Article 5.2.4 of this standard
Visual inspection.
6.6 Test methods in Articles 5.3.1 and 5.3.2 of this standard 6.6.1 Test instrument
a a. a platform scale with an accuracy of 1/1000,
b. a stopwatch with an accuracy of ±1s.
6.6.2 Test procedure
Place the electric heating steam generator on the platform scale, supply water to the capacity specified by the manufacturer and start heating. When the steam reaches 0.3MPa, record the reading of the platform scale;
Quasi-heat network
QB/T1485--1992
Open the steam release valve and use a stopwatch to record the time. Adjust the amount of steam release to keep the pressure within the range of 0.3±0.02MPa. After 30 minutes, close the steam release valve and record the reading of the platform scale for the second time; c.
The difference between the two readings is the steam production during this time, which is converted into steam production per unit time. 6.7 This standard promotes the test method of 5.3.3
Repeat three times for visual inspection.
6.8 Test method in Article 5.3.4 of this standard
Under the working pressure state specified by the manufacturer, maintain the pressure for 10 minutes and inspect visually. 7 Inspection rules
7.1 Inspection classification
Inspection is divided into factory inspection and type inspection. 7.2 Non-conformity classification
Non-conformity can be divided into the following categories according to the importance of unit product quality based on quality characteristics: a. Class A non-conformity: extremely important quality characteristics of unit products do not meet the requirements; B. Class B non-conformity: important quality characteristics of unit products do not meet the requirements; b.
C. Non-conformity: general quality characteristics of unit products do not meet the requirements. 7.3 Factory inspection
7.3.1 All products leaving the factory shall be inspected. 7.3.2 Inspection items
See Table 2 for inspection items and categories.
Inspection Items
7.3.3 Qualification of Individual Products
Classification of Unqualified Products
A single product is deemed qualified when it meets the following conditions: no unqualified items of Category A or B appear;
no more than two unqualified items of Category C appear. 7.4 Type Inspection
Standard Technical Special Network
mStandard Operation Element
Inspection Classification
Factory Inspection
Type Inspection
QB/T 1485-1992
Type inspection is generally carried out in one of the following situations. When new products are trial-produced and identified or old products are transferred to other factories for production; during formal production, if there are major changes in structure, materials, and processes that may affect product performance; during normal production, once a year;
When a product is discontinued for more than one year (including one year) and then resumes production; when the factory inspection results are significantly different from the last type inspection; when the national quality supervision agency proposes a type inspection requirement. 7.4.2 Sample Drawing
Randomly draw 4 sample units from a batch or batches manufactured in this cycle and passed the factory inspection, inspect two of the sample units, and keep the other two sample units for inspection. 7.4.3 Inspection Items
See Table 2 for inspection items and categories.
7.4.4 Type inspection qualification judgment
Type inspection is judged to be qualified when one of the following conditions is met: the two sample units inspected do not have Class A unqualified items and more than one Class B unqualified items, nor do they have more than four a.
Class C unqualified items, and no more than two unqualified items appear in a sample unit; b. If the two sample units inspected do not have Class A unqualified items and more than two Class B unqualified items, nor do they have more than five Class C unqualified items, and no more than two Class B unqualified items appear in a sample unit, and the total number of unqualified items does not exceed four, then the same items of the other two sample units are allowed to be re-inspected, and all these items should be qualified. 8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The machine should have a durability nameplate.
8.1.2 The following contents shall be clearly marked on the nameplate: a.
Manufacturer name;
Registered trademark;
Product name;
Product model;
Manufacturing date or number.
8.2 Packaging
The machine shall be packed in a firm box with moisture-proof protection measures. 8.2.1
8.2.2 The packaging measures shall be to ensure that the machine will not be damaged by vibration, loading and unloading, moisture and dust in general transportation and storage conditions.
8.2.3 Before packaging, the exposed metal parts of the machine without paint shall be painted with anti-rust agent. The machine and accessories shall be fixed securely in the box, and appropriate padding shall be added if necessary. 8.2.4
8.2.5Each machine should have the following documents: a.
Product certificate;wwW.bzxz.Net
Instruction manual;
Packing list.
The outer surface of the packaging box should clearly mark or indicate the following items: 8.2.6
Product name;
Product standard code and number;
Product model;
All kinds of markings Industry information free download
Net weight;
Gross weight;
Dimensions: length × width × height,
Manufacturer name.
8.2.7 Packaging marks shall comply with the provisions of GB191. 8.3 Transportation
QB/T 1485—1992
Machines should be protected from bumping and violent collisions during loading, unloading and transportation. 8.4 Storage
Packaged products should be stored in a well-ventilated and dry room. There should be no corrosive gas in the surrounding air. Additional remarks:
This standard was proposed by the Technical Equipment Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Garment Machinery Standardization Center. This standard was drafted by Wuxi Garment Machinery Factory. The main drafters of this standard are Xue Yaolun, Qi Fan, Zhuang Genmei, Xing Shumin and Xu Feng.
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