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1、BRITISH STANDARD BS 799-5:1987 Oil burning equipment Part 5: Specification for oil storage tanks UDC 662.94:683.8/.9:697:621.642 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 799-5:1987 This British Standa
2、rd, having been prepared under the direction of the Refrigeration Heating and Air Conditioning Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 December 1987. BSI 12-1998 First published October 1975 First revision December 1987 The following BSI
3、 references relate to the work on this standard: Committee reference RHE/13 Draft for comment 83/77821 DC ISBN 0 580 16274 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Refrigeration Heating and Air Conditioning Standards Committee (
4、RHE/-) to Technical Committee RHE/13, upon which the following bodies were represented: Associated Offices Technical Committee Association of Shell Boilermakers British Combustion Equipment Manufacturers Association British Tar Industry Association Chartered Institution of Building Services Engineer
5、s Chief and Assistant Chief Fire Officers Association Department of the Environment (Building Research Establishment) Department of the Environment (Property Services Agency) Electricity Supply Industry in England and Wales Engineering Equipment and Materials Users Association Engineering Industries
6、 Association Fire Offices Committee Health and Safety Executive Institute of Domestic Heating and Environmental Engineers Institute of Energy Institution of Fire Engineers Water-tube Boilermakers Association The following body was also represented in the drafting of the standard: Institution of Mech
7、anical Engineers Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 799-5:1987 BSI 12-1998i Contents Page Committees responsibleInside front cov
8、er Forewordiii 1Scope1 2Definitions1 3Integral tanks1 4Service tanks2 5Oil storage tanks3 6Manholes and inspection openings12 7Heaters for oil storage tanks13 8Oil level indicators14 9Drain valves15 10Filling pipes and connections15 11Vent pipes16 12Outlet valves and pipes17 13Oil return pipes17 14F
9、ire valves17 15Installation of tanks18 Appendix A Pressure test20 Appendix B Overfilling of oil storage tanks20 Appendix C Information to be supplied by the purchaser24 Figure 1 Relationship between design head, pitch of stays or stiffening and plate thickness for rectangular service tanks of type S
10、4 and rectangular storage tanks of types III, J and K6 Figure 2 Relationship between design head, span between supports and plate thickness for rectangular storage tanks of types III, J and K8 Figure 3 Shallow dished and flanged end8 Figure 4 Dished and flanged end9 Figure 5 Positions of steel cradl
11、es for storage tanks of type I10 Figure 6 Positions of steel cradles for storage tanks of type II11 Figure 7 Positions of cradles for storage tanks of types A, B and C12 Figure 8 Typical arrangement of tank heaters with long heaters to spread heat in tank and short heater fitted on manhole14 Figure
12、9 Details of filling point with witness hole and protective cap16 Figure 10 Details of filling point with groove and protective cap16 Figure 11 Typical storage tank arrangements19 Figure 12 Graph showing pressure developed when tank is overfilled with oils classes C and D at a filling rate of 500 L/
13、min and at a viscosity of 16 mm2/s21 Figure 13 Graph showing pressure developed when tank is overfilled with oils classes C and D at a filling rate of 1 000 L/min and at a viscosity of 16 mm2/s22 Figure 14 Graph showing pressure developed when tank is overfilled with oils classes E, F and G at a fil
14、ling rate of 1 000 L/min and at a viscosity of 370 mm2/s23 Figure 15 Graph showing pressure developed when tank is overfilled with oils classes E, F and G at a filling rate of 1 000 L/min and at a viscosity of 860 mm2/s24 Licensed Copy: London South Bank University, London South Bank University, Fri
15、 Dec 08 11:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 799-5:1987 ii BSI 12-1998 Page Table 1 Minimum plate thicknesses for service tanks of types S3 and S53 Table 2 Minimum plate thicknesses for storage tanks of types I and II5 Table 3 Minimum plate thicknesses for storage tanks of type A8
16、Table 4 Minimum plate thicknesses for storage tanks of types B and C8 Table 5 Minimum plate thicknesses for storage tanks of type D9 Table 6 Minimum plate thicknesses for storage tanks of types E and F10 Table 7 Minimum plate thicknesses for storage tanks of type G10 Table 8 Dimensions of steel crad
17、les for storage tanks of type I11 Table 9 Dimensions of steel cradles for storage tanks of type II11 Table 10 Dimensions for cradles for storage tanks of types A, B and C12 Table 11 Manholes and inspection openings: minimum thicknesses of covers and maximum pitch of fixing bolts13 Table 12 Oil and w
18、ater drain valves: minimum clearway openings for varying tank capacities15 Table 13 Filling pipes and connection sizes for oils classes C, D, E, F, G and H17 Table 14 Minimum storage and outflow temperatures for oils classes C, D, E, F, G and H18 Table 15 Equivalent height of vent: allowances for ho
19、rizontal pipe runs, easy and sharp bends at a filling rate of 500 L/min and at a viscosity of 16 mm2/s20 Table 16 Equivalent height of vent: allowances for horizontal pipe runs, easy and sharp bends at a filling rate of 1 000 L/min and at a viscosity of 16 mm2/s21 Table 17 Equivalent height of vent:
20、 allowances for horizontal pipe runs, easy and sharp bends at a filling rate of 1 000 L/min and at a viscosity of 370 mm2/s22 Table 18 Equivalent height of vent: allowances for horizontal pipe runs, easy and sharp bends at a filling rate of 1 000 L/min and at a viscosity of 860 mm2/s23 Publications
21、referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 799-5:1987 BSI 12-1998iii Foreword This Part of BS 799 has been prepared under the direction of the Refrigeration, Heating and Air
22、 Conditioning Industry Standards Committee. It supersedes BS 799-5:1975 which is withdrawn. It deals with tanks used for the storage of liquid fuel used in conjunction with oil burning equipment. Some changes from the previous edition have been made. In particular, upper limits on tank volumes have
23、been included, certain design heads and plate thicknesses have been altered for tank types A to L and the tanks to the previous type H are now included with type E. Reference to coal tar liquid fuels complying with BS 1469 have been omitted as BS 1469 has now been withdrawn. The tanks may still be c
24、onsidered suitable for the storage of coal tar liquid fuels provided that the characteristics of the particular fuel to be stored can be obtained. The text dealing with storage capacity in the appendix of the previous edition has been omitted in this edition because this subject is now referred to i
25、n BS 5410 to which reference should be made for general recommendations in respect of the installation of storage tanks. The tank plate thicknesses are in accordance with Table 2 of BS 6722:1986. General requirements for the design and staying or stiffening of tanks are given. An appendix C has been
26、 included which lists the information to be supplied by the purchaser. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer imm
27、unity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv pages 1 to 24, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the
28、 amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:26:14 GMT+00:00 2006
29、, Uncontrolled Copy, (c) BSI BS 799-5:1987 BSI 12-19981 1 Scope This Part of BS 799 specifies requirements for tanks for the storage of liquid fuel, used in conjunction with oil burning equipment, and includes: a) integral tanks which form a part of a complete oil fired unit; b) service tanks; c) st
30、orage tanks with a maximum height of 10 m. The maximum capacities of the various types of tank are specified. This standard is applicable to tanks constructed of plain carbon steel. NOTE 1The requirements of this standard should not be applied to tanks constructed of plastics or materials other than
31、 plain carbon steel. NOTE 2The titles of the publications referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS 799, the following definitions apply. 2.1 oil petroleum oil fuels of classes C, D, E, F, G and H as specified in BS 2869 2.2 i
32、ntegral tank a small tank up to 25 L capacity which forms an integral part of an oil fired unit or appliance and which requires filling by hand 2.3 service tank an auxiliary tank having a capacity of not more than 1 000 L, which isolates the main storage tank or tanks from the burner installation 2.
33、4 design pressure or head that pressure or equivalent head of water acting at the bottom, sides and top of the tank 2.5 design pressure or head at the bottom of the tank the tank depth plus a vent height of 0.5 m. If the height of the vent pipe exceeds 0.5 m or where it is not possible to provide a
34、pressure relief device, the full equivalent height of the vent pipe including frictional loss is taken into account when calculating the design pressure NOTESee appendix B. 2.6 design pressure or head at the top of the tank a vent height of 0.5 m. If the height of the vent pipe exceeds 0.5 m or wher
35、e it is not possible to provide a pressure relief device, the full equivalent height of the vent pipe including frictional loss is taken into account when calculating the design pressure NOTESee appendix B. 2.7 design pressure or head at the side of the tank two-thirds the pressure at the bottom of
36、the tank 2.8 tank capacity the gross internal volume of the tank 2.9 fire valve an automatically operated quick closing valve held open by any one of the following methods: a) by means of the tension of a wire on which are one or more fusible links; b) electrically; operated by one or more heat sens
37、itive devices; c) pneumatically; the air system is sealed by one or more fusible plugs; d) by means of a sealed system incorporating a sensitive phial placed over the firing point. 3 Integral tanks 3.1 General Integral tanks shall have a capacity of not more than 25 L. Each integral tank shall carry
38、 a prominent notice at the filling point to indicate that the tank is not to be filled whilst the burner is alight and specifying the grade of oil to be used. Each integral tank shall be so mounted and positioned that when the ambient temperature is 25 C or higher the temperature of the oil in the t
39、ank does not exceed 35 C with class C oil or 55 C with class D oil. Each integral tank shall be mounted in such a position that oil accidentally spilled during filling or escaping is unable to come into contact with any heated surface. 3.2 Pressure testing Before being painted, each tank shall be pr
40、essure tested by the manufacturer in accordance with appendix A. The manufacturer shall provide the purchaser with a copy of the test certificate for each tank supplied. Each tank shall be able to withstand the design pressure. Licensed Copy: London South Bank University, London South Bank Universit
41、y, Fri Dec 08 11:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 799-5:1987 2 BSI 12-1998 NOTE 1All the pressures to which the tank may be subjected (see 2.4 to 2.7) should be taken into consideration. NOTE 2The purchaser should inform the manufacturer of the required design pressure see C.1 a).
42、 3.3 Construction All joints below the full fuel level shall be made by brazing or welding. NOTEAttention should be paid in the design of integral tanks to ensure that they can be safely used for the purpose for which they are intended by providing sufficient strength and rigidity to resist that dis
43、tortion which may give rise to hazardous discharge of oil or vapour. Integral tanks should be resistant to corrosion. 4 Service tanks 4.1 Types Service tanks shall be designated as follows. Type S1: cylindrical tanks having a capacity up to and including 250 L. Type S2: rectangular tanks having a ca
44、pacity up to and including 250 L. Type S3: horizontal cylindrical tanks having a capacity over 250 L but not exceeding 1 000 L. Type S4: rectangular tanks having a capacity over 250 L but not exceeding 1 000 L. Type S5: horizontal oval tanks having a capacity not exceeding 1 000 L. 4.2 General 4.2.1
45、 Service tanks shall have a capacity of not more than 1 000 L. 4.2.2 The requirements for tank oil heaters, when installed (see 15.3 and appendix C), shall be as specified in clause 7. 4.2.3 An oil drain valve and, in addition for coal tar liquid fuels, a water drain valve shall be provided as speci
46、fied in clause 9. 4.2.4 A separate vent pipe or return pipe shall be provided for each tank, at the higher end. (See clauses 11 and 13 and BS 5410.) 4.2.5 For oil draw-off lines and where return lines as specified in 15.1 c) are used, fire valves shall be provided as specified in clause 16. 4.2.6 Se
47、rvice tanks shall be installed as specified in clause 15 (see also BS 5410). 4.3 Pressure testing Before being painted, each tank shall be pressure tested in accordance with appendix A at the manufacturers works or on site when the tank is fabricated on site. Tanks tested on site shall be tested hyd
48、raulically. The manufacturer shall provide the purchaser with a copy of the test certificate for each tank supplied. Each tank shall be able to withstand the design pressure. NOTE 1All the pressures to which the tank may be subjected (see 2.4 to 2.7) should be taken into consideration. NOTE 2The pur
49、chaser should inform the manufacturer of the required design pressure see C.1 a). 4.4 Marking The following information shall be permanently and clearly marked on the tank on the vertical centre line near the outlet connection: a) capacity (in L); b) date of manufacture; c) manufacturers name or trade mark; d) manufacturers reference number; e) the number and date of this British Standard1) and type of tank (e.g. BS 799-5:1987 type S1). 4.5 Construction and plate thickness 4.5.1 Service tanks sh
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