【Daily Question】 【AC Version for Static Equipment...Question 74】 March 15, 2019 – Self-created question and answer...Everything is going well
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This post was last edited by kareale88 on 2019-3-14 21:20: bg4.png【Daily Question】【Static Equipment Discussion Forum...Question No. 74】 March 15, 2019 – Self-created questions and answers... Everything is going well........................................................................... Please fill in the answers (multiple choice, multiple choice, multiple choice) in order. Reward rules: 2 wealth for participation, 8 wealth for each correct answer. Extra points for thought questions. ........................................................................... What are the scope of application and limitations of NB/T 47041-2014 \"Tower-type Containers\"? 1.1 This standard specifies the requirements for the design, manufacturing, inspection, and acceptance of metal tower-type containers. 1.2 The scope of application of this standard is as follows: a) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be in accordance with the provisions of relevant standards ； b) The design temperature range is based on the allowable operating temperature range of the metal material ； c) Self-supporting metal tower-type vessels with a skirt whose ratio of height H to average diameter D is greater than 5. 1.3 For self-supporting metal tower vessels with a height H to average diameter D ratio of less than or equal to 5, design may be carried out with reference to Appendix E. 1.4 This standard does not apply to the following tower-type vessels: a) Tower-type vessels equipped with pulling devices ； b) Towers or groups of towers connected together by an operational platform ； c) Tower-type vessels with jackets ； d) Cast iron and non-metallic tower vessels. --------------------- One can consider: 1. With the old standard \"Steel Tower Containers\" being replaced by the new standard \"Tower Containers\", what changes have taken place in the requirements regarding materials as a result of the removal of the word \"steel\"? 2. What does the height H of the tower here refer to?
1.1 This standard specifies the requirements for the design, manufacturing, inspection, and acceptance of metal tower-type containers. 1.2 The scope of application of this standard is as follows: a) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be in accordance with the provisions of relevant standards ； b) The design temperature range is based on the allowable operating temperature range of the metal material ； c) Self-supporting metal tower-type vessels with a skirt whose ratio of height H to average diameter D is greater than 5. 1.3 For self-supporting metal tower vessels with a height H to average diameter D ratio of less than or equal to 5, design may be carried out with reference to Appendix E. 1.4 This standard does not apply to the following tower-type vessels: a) Tower-type vessels equipped with pulling devices ； b) Towers or groups of towers connected together by an operational platform ； c) Tower-type vessels with jackets ； d) Cast iron and non-metallic tower vessels.
1.1 This standard specifies the requirements for the design, manufacturing, inspection, and acceptance of metal tower-type containers. 1.2 The scope of application of this standard is as follows: a) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be in accordance with the provisions of relevant standards ； b) The design temperature range is based on the allowable operating temperature range of the metal material ； c) Self-supporting metal tower-type vessels with a skirt whose ratio of height H to average diameter D is greater than 5. 1.3 For self-supporting metal tower vessels with a height H to average diameter D ratio of less than or equal to 5, design may be carried out with reference to Appendix E. 1.4 This standard does not apply to the following tower-type vessels: a) Tower-type vessels equipped with pulling devices ； b) Towers or groups of towers connected together by an operational platform ； c) Tower-type vessels with jackets ； d) Cast iron and non-metallic tower vessels.
1.1 This standard specifies the requirements for the design, manufacturing, inspection, and acceptance of metal tower-type containers. 1.2 The scope of application of this standard is as follows: a) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be in accordance with the provisions of relevant standards ； b) The design temperature range is based on the allowable operating temperature range of the metal material ； c) Self-supporting metal tower-type vessels with a skirt whose ratio of height H to average diameter D is greater than 5. 1.3 For self-supporting metal tower vessels with a height H to average diameter D ratio of less than or equal to 5, design may be carried out with reference to Appendix E. 1.4 This standard does not apply to the following tower-type vessels: a) Tower-type vessels equipped with pulling devices ； b) Towers or groups of towers connected together by an operational platform ； c) Tower-type vessels with jackets ； d) Cast iron and non-metallic tower vessels.
The scope of application of this standard is as follows: a) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be in accordance with the provisions of relevant standards； b) The design temperature range is based on the allowable operating temperature range of the metal material ； c) Self-supporting metal tower-type vessels with a skirt whose ratio of height H to average diameter D is greater than 5. For self-supporting metal tower vessels with a height H to average diameter D ratio of less than or equal to 5, design can be referred to Appendix E. This standard does not apply to the following tower-type vessels: a) Tower-type vessels with pulling devices ； b) Towers or groups of towers connected together by an operational platform ； c) Tower-type vessels with jackets ； d) Cast iron and non-metallic tower vessels.
1.1 This standard specifies the requirements for the design, manufacturing, inspection, and acceptance of metal tower-type containers. 1.2 The scope of application of this standard is as follows: a) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be in accordance with the provisions of relevant standards ； b) The design temperature range is based on the allowable operating temperature range of the metal material ； c) Self-supporting metal tower-type vessels with a skirt whose ratio of height H to average diameter D is greater than 5. 1.3 For self-supporting metal tower vessels with a height H to average diameter D ratio of less than or equal to 5, design may be carried out with reference to Appendix E. 1.4 This standard does not apply to the following tower-type vessels: a) Tower-type vessels equipped with pulling devices ； b) Towers or groups of towers connected together by an operational platform ； c) Tower-type vessels with jackets ； d) Cast iron and non-metallic tower vessels.
The scope of application of this standard is as follows: 1) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be determined in accordance with relevant standards; 2) The design temperature range shall be within the allowable operating temperature range of the metal material; 3) Self-supporting metal tower-type vessels with a skirt, where the ratio of height H to average diameter D is greater than 5. For self-supporting metal tower-type vessels with a height H to average diameter D ratio of less than or equal to 5, design can be carried out with reference to Appendix E of this standard. The areas where this standard does not apply are as follows: 1) Tower-type vessels equipped with pulling devices; 2) Rows of towers or groups of towers connected by operating platforms; 3) Tower-type vessels with jackets; 4) Tower-type vessels made of cast iron and non-metallic materials.
1.2 The scope of application of this standard is as follows: a) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be in accordance with the provisions of relevant standards； b) The design temperature range is based on the allowable operating temperature range of the metal material ； c) Self-supporting metal tower-type vessels with a skirt whose ratio of height H to average diameter D is greater than 5. 1.3 For self-supporting metal tower vessels with a height H to average diameter D ratio of less than or equal to 5, design may be carried out with reference to Appendix E. 1.4 This standard does not apply to the following tower-type vessels: a) Tower-type vessels equipped with pulling devices ； b) Towers or groups of towers connected together by an operational platform ； c) Tower-type vessels with jackets ； d) Cast iron and non-metallic tower vessels.
1.1 This standard specifies the requirements for the design, manufacturing, inspection, and acceptance of metal tower-type containers. 1.2 The scope of application of this standard is as follows: a) For steel tower-type vessels, the design pressure shall not exceed 35 MPa; for tower-type vessels made of other metal materials, the design pressure shall be in accordance with the provisions of relevant standards ； b) The design temperature range is based on the allowable operating temperature range of the metal material ； c) Self-supporting metal tower-type vessels with a skirt whose ratio of height H to average diameter D is greater than 5. 1.3 For self-supporting metal tower vessels with a height H to average diameter D ratio of less than or equal to 5, design may be carried out with reference to Appendix E. 1.4 This standard does not apply to the following tower-type vessels: a) Tower-type vessels equipped with pulling devices ； b) Towers or groups of towers connected together by an operational platform ； c) Tower-type vessels with jackets ； d) Cast iron and non-metallic tower vessels.
1. Design pressure PN ≤ 35 MPa； 2. Suitable for self-supported columnar vessels with H/D＞5 skirt bases ； H — Total height (height from the lower surface of the base ring plate to the tangent point of the tower’s upper head) ； D — the nominal diameter of the tower shell. For tower vessels with unequal diameters (weighted average): 3. Metal (steel and non-ferrous) tower vessels ； Areas where it is not applicable: 1. Columns equipped with pulling devices 2. Column-type vessels with jackets ； 3. Towers or groups of towers with an operating platform integrated into them ； 4. Cast iron and non-metallic tower-type containers.