• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    It relates to a mechanical pump having an inlet for fluid to pass through and an outlet spaced from the inlet, and comprising at least one flame arrester.
    公开号:KR20030029021A
    申请号:KR1020020060047
    申请日:2002-10-02
    公开日:2003-04-11
    发明作者:랜섬케빈미첼；팔머클리포드
    申请人:더 비오씨 그룹 피엘씨；
    IPC主号:
    专利说明:

    Mechanical pumps {MECHANICAL PUMPS}
    [8] The present invention relates to mechanical pumps and in particular to mechanical pumps used in the chemical and process industries where there is an inherent risk of explosion and / or ignition due to the nature of the fluid to be pumped.
    [9] Current commercial flame arresters are separate expensive devices that are bolted or otherwise coupled to a mechanical pump to mitigate or prevent the chance of explosion or ignition resulting from the pumping of hazardous fluids. These known flame arresters are made of expensive stainless steel because they are recognized as 'cold pipework' and susceptible to corrosion. They also require significant mechanical support.
    [10] It is an object of the present invention to provide a mechanical pump incorporating at least one flame arrester.
    [11] By effectively incorporating the flame arrester in the mechanical pump, it is maintained to be hotter and less susceptible to corrosion. Flame arresters can also be safely manufactured from materials that are less expensive than stainless steel, such as, for example, spheroidal graphite iron.
    [12] According to the invention, a mechanical pump having an inlet for fluid passage and an outlet spaced from the inlet, comprises at least one flame arrester.
    [13] Preferably the flame arrester is located immediately adjacent to the pump inlet.
    [14] In one embodiment, two flame arresters are incorporated in the pump, one located directly adjacent the pump inlet and the other located directly adjacent the pump outlet.
    [15] Each flame arrester includes a flame arresting element removably mounted in the housing. According to this feature, the flame arresting element can be removed or replaced without disturbing any process pipe mechanism to which the pump is attached.
    [16] The housing has a rectangular box cross-section body, the opposite end of which is closed by one or more removable cover plates that facilitate removal of the flame arresting elements.
    [17] Hereinafter, embodiments of the present invention will be described by way of example with reference to the accompanying schematic drawings.
    [1] 1 is a perspective view of a mechanical pump according to the present invention,
    [2] FIG. 2 is an exploded detail view of the mechanical pump of FIG. 1 showing a flame arrester incorporated into the pump.
    [3] Explanation of symbols for the main parts of the drawings
    [4] 1: mechanical pump 2: inlet
    [5] 3: outlet 4: flame arrester
    [6] 6: flame arresting element 8: housing
    [7] 10: body 12: cover plate
    [18] As shown, the mechanical pump 1 comprises an inlet 2 for the fluid to pass through and an outlet 3 spaced apart from the inlet 2.
    [19] Immediately adjacent the inlet 2 comprises a flame arresting element 6, for example made of a mesh material and removably mounted in the housing 8. The housing 8 has a rectangular box cross-sectional body 10, the opposite end of which is closed by a removable cover plate 12 (only one shown). Since the body 10 and the cover plate 12 form part of the pump 1 and achieve high temperatures when the pump 1 is operated, they are relatively inexpensive, such as gray or nodular graphite iron, without the risk of corrosion. It can be made of a material.
    [20] In use, with one or two cover plates 12 removed, the flame arresting element 6 slides into place in the body 10 of the housing 8. Each cover plate 6 is then bolted to the end face of each body 10 to seal the flame arresting element in the housing 8.
    [21] Finally, the flame arresting element 6 is clamped in place in the housing 8, for example by means of a number of bolts 14 or other mechanical means. The bolts 14 are sealed in the housing to prevent them from leaking.
    [22] The flame arrester 4 is bolted to the pump between the casing and the pump inlet 2 and thereby incorporated in the body of the pump 1.
    [23] By removing one of the cover plates 12, releasing the bolts 14 and sliding the flame arresting element 6 out of the body 10 of the housing 8, the flame arresting element 6 is removed for cleaning or replacement. It will be appreciated that it can be removed from the pump 1.
    [24] In this way, the flame arresting element 6 can be removed without disturbing any process pipe mechanism to which the pump 1 is attached.
    [25] It will be evident that the second flame arrester can be incorporated in the pump 1 immediately adjacent to the outlet 3 of the pump in a manner similar to that described for the flame arrester 4 and the pump inlet 2.
    [26] Although the housing 8 has been described and shown as having a rectangular box cross-section body 10, other shapes may be used, such as oval or circular, for example.
    [27] According to the present invention, by effectively incorporating the flame arrester in the mechanical pump, it is maintained at a higher temperature and less susceptibility to corrosion. In addition, flame arresters can be safely manufactured from materials that are less expensive than stainless steel, such as spherical graphite iron.
    权利要求:
    Claims (8)
    [1" claim-type="Currently amended] A mechanical pump having an inlet for fluid passage and an outlet spaced from the inlet, incorporating at least one flame arrester.
    [2" claim-type="Currently amended] The method of claim 1,
    The at least one flame arrester is located immediately adjacent the pump inlet.
    [3" claim-type="Currently amended] The method of claim 1,
    Two flame arresters are incorporated in the pump, one located directly adjacent the pump inlet and the other located directly adjacent the pump outlet.
    [4" claim-type="Currently amended] The method according to any one of claims 1 to 3,
    Said flame arrester or each flame arrester comprising a flame arrester element removably mounted in a housing.
    [5" claim-type="Currently amended] The method of claim 4, wherein
    Said flame arresting element is made of mesh material.
    [6" claim-type="Currently amended] The method according to claim 4 or 5,
    The housing has a rectangular box cross-section body, the opposite end of which is closed by a removable cover plate.
    [7" claim-type="Currently amended] The method of claim 6,
    The housing is made of spherical graphite iron.
    [8" claim-type="Currently amended] A mechanical pump adapted to be constructed, arranged and operated substantially as described above with reference to the accompanying drawings and as shown in the accompanying drawings.
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    同族专利:
    公开号 | 公开日
    US20030086795A1|2003-05-08|
    EP1300591A3|2009-09-16|
    US6942466B2|2005-09-13|
    CN1281867C|2006-10-25|
    CN1412442A|2003-04-23|
    GB0123873D0|2001-11-28|
    JP2003176789A|2003-06-27|
    EP1300591B1|2013-09-04|
    EP1300591A2|2003-04-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2001-10-04|Priority to GB0123873.2
    2001-10-04|Priority to GB0123873A
    2002-10-02|Application filed by 더 비오씨 그룹 피엘씨
    2003-04-11|Publication of KR20030029021A
    优先权:
    申请号 | 申请日 | 专利标题
    GB0123873.2|2001-10-04|
    GB0123873A|GB0123873D0|2001-10-04|2001-10-04|Mechanical pumps|
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