• 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:
    The invention relates to a water tank for water storage, comprising side walls (1) mounted on a foundation (2) and a membrane (4) which covers the foundation and extends upwards on the side wall (1), through which the membrane (4) extending below the water level only on a lowest bottom portion of the side wall (1). The invention further relates to a method for constructing such a water tank.
    公开号:BE1018789A3
    申请号:E2010/0759
    申请日:2010-12-23
    公开日:2011-08-02
    发明作者:Gerrit Kruithof
    申请人:Avasco Ind N V；
    IPC主号:
    专利说明:

    Water tank bottom
    The invention relates to a watertight bottom of a steel water tank that is suitable for the storage of sprinkler water for fire prevention. The invention also relates to a method for installing said bottom in a steel water tank.
    Traditionally a steel water tank is installed with a watertight bottom by providing a concrete filling of approximately 20 cm thick on the bottom inside the tank. However, a problem arises when water tanks have to be installed in isolated areas where the supply of concrete is a problem. Another problem may be the quality and reliability of the concrete mix, which must withstand cracks and be watertight. In other words, the process of making and the availability of concrete as such cannot be fully controlled by the installer. Moreover, concrete makes this a costly installation.
    Another way of installing a watertight steel water tank is to provide an inner lining, for example of rubber. The inner lining covers the entire tank wall of the water tank and extends to the top, above the water level. This solves the problem just mentioned, but there are some major drawbacks. A problem with this type of design is that the water tank will leak and become unusable as soon as the liner becomes torn or damaged. Another problem is serious corrosion of the tank wall due to condensation between the liner and said wall.
    It is therefore an object of the present invention to simultaneously provide an inexpensive and reliable solution to the aforementioned problems, as a solution in which the installation can be carried out completely autonomously by the installer without being dependent on the (quality of) third parties. . Another object of the invention is to provide a water tank that is completely watertight during the required service life.
    To this end the invention provides a water tank for water storage, comprising side walls (1) mounted on a foundation (2) and a membrane (4) which covers the foundation and extends upwards on the inner side walls, the edge of the membrane ( 4) ends below the water level. The diaphragm extends only over a portion of the side walls, namely, the portion of the space required for attaching the diaphragm to the lower portion of the inner side walls.
    The diaphragm only extends to the lower portion of the side walls and does not extend to the upper level of the tank. Because the membrane edge is below the water level, there is a need for a watertight seal of the membrane against the tank wall. This watertight seal is provided by the embodiments of the present invention.
    The advantage of the water tank of the invention is that it is inexpensive, simple, convenient, reliable and quick to install. Furthermore, the water tank is completely watertight. A minimal amount of membrane material is used. Due to the small thickness of the membrane in comparison with a tank bottom filled with concrete, the height of the tank with the same capacity (capacity) can be reduced, resulting in a reasonable cost saving. The installation process from the beginning to the end depends solely on one installer.
    In an embodiment according to the invention, said membrane (4) is mounted watertight between said inner side walls (1) and a fixing means (8) by means of bolts (9) in pre-arranged holes (5a, 5b) and mastic (6, 7, 10).
    In a preferred embodiment, said membrane (4) extends 10 to 50 cm, preferably 10 to 30 cm or any suitable distance, upwards on the side walls (1) for attaching the membrane to the side walls with an attachment means, whereby only a minimal amount of membrane required is applied in a cost-effective manner.
    In a specific embodiment, at least one row of swell-sealing mastic (7) is applied between the side walls (1) and the membrane (4) in a continuous watertight manner.
    In a preferred embodiment, said fixing means (8) is mounted on the side walls (1) by means of two or more rows (I, II) bolts (9). Said two or more rows (I, II) are preferably horizontal, i.e. parallel to the plane of the foundation or the bottom of the tank.
    In a specific embodiment, a mastic (6) is provided in each hole (5a, 5b) in a continuous watertight manner. A mastic (10) is applied in a continuous watertight manner between the lower end of the fastener (8) and the membrane (4), between the upper edge of the fastener (8) and the membrane (4), and between the upper edge of the membrane and the side walls.
    Said fixing means (8) comprises one or more reinforcing ribs (11) which extend outside the surface of said fixing means. In a specific embodiment, said reinforcement rib (11) is a curved edge or a sealing edge.
    In a preferred embodiment, said fastener (8) comprises one or more peripheral bands (8) clamping plates, each band comprising two or more horizontal rows (I, II) of pre-arranged holes (5b) corresponding to pre-arranged holes (5a) in the side walls.
    The membrane (4) is preferably made from EPDM. A protective layer (3) is applied to the bottom between the foundation (2) and the membrane (4).
    In a specific embodiment, an enclosure (12) is provided which holds gravel (13) around the bottom floor of the tank for hiding an L-profile (14) provided with bolts (16) whereby the tank is on the foundation (2) mounted.
    The invention also provides a method for constructing a water tank as described above, which method comprises the steps of: a) mounting the side walls (1) of a water tank on a foundation (2); b) spreading a membrane (4) on the foundation (2) and extending said membrane on the inner side walls to a level below the water level; c) applying a continuous swelling seal (7) between the membrane (4) and the side walls (1); d) providing a continuous mastic (6) between the membrane (4) and the side wall (1) at the level of the rows (I, II) holes (5a); e) applying a continuous mastic (6) between the membrane (4) and a clamping plate (8) at the level of the rows (I, II) holes (5b); f) fixing the clamping plate (8) on the side walls (1) by means of bolts (9) through the holes (5a, 5b) and the mastic (6); g) applying mastic (10) to the edges of the clamping plate (8) and the membrane (4), with any space between the edge of the membrane (4) and the side walls (1) and any space between the clamping plate (8) ) and the membrane (4) is sealed; h) optionally applying an outer enclosure around the bottom of the water tank.
    The invention also provides for the use of a sprinkler water tank as described above for watertight storage.
    The water tank can be installed on any horizontal surface that is strong and stable enough to support the weight of the tank and the water therein. As such, the water tank (on a concrete slab) can be installed on the ground, but can also be installed on a tower, a roof or other supporting means.
    The invention will now be described in more detail with reference to the following figures:
    Figure 1 shows a section of a cylindrical water tank according to the invention.
    Figure 2 shows a photo detail of a water tank construction according to the invention.
    Figure 1 shows a cross-section of a cylindrical water tank (1) that is placed on a concrete foundation (2). The tank is mounted level (tolerance of approximately 10 mm) and fixed in the concrete slab with anchor bolts. The water tank is made of galvanized modular steel plates, assembled with silo bolts and sealed with mastic.
    The top surface of the concrete is clean and cleared of all parts that could damage the membrane. A protective layer (3) is placed on the top of the concrete surface and extends partially to the sides of the tank. Examples of protective layers are geotextiles (300 g / m2) or equivalents.
    The membrane (4) is first positioned at the top of the protective layer, in the center of the tank, in a specially packaged embodiment. It is then opened to cover the bottom of the tank, thereby partially extending upwards, preferably 20 to 30 cm, on the sides of the tank. As such, the membrane (4) does not rise above the water level but ends below the water level, inside the tank. The membrane is preferably made from EPDM (1.2 mm thickness) or equivalents.
    The tank wall is provided with pre-arranged holes (5a), preferably in two horizontal rows (I, II) parallel to the bottom of the tank. A mastic (6) is provided on the inside of the tank in a continuous manner along each of the two horizontal rows (I, II) pre-arranged holes. Also in a horizontal row, holes provided between the two horizontal rows, a swelling connection is made with swelling-sealing mastic (7), also preferably in a continuous manner. The swelling compound can be the same material as the mastic.
    The diaphragm (4) is forcefully pressed onto the two rows (I, II) mastic (6) and the swelling seal mastic (7), thereby preventing any leakage of water.
    A clamping plate (8) provided with two horizontal rows (I, II) of pre-arranged holes (5b) is provided on the top of the membrane and fixed to the corresponding rows of pre-arranged holes (5a) in the tank wall. Both rows of holes of the clamping plate (8) are also provided with mastic (6) in continuous horizontal rows.
    The clamping plate (8) is fixed segment by segment on the tank wall (1) by means of silo bolts (9) fitting into the holes (5a, 5b), thereby forming a continuous peripheral clamping band (8).
    The top and bottom of the clamp plate (8) is provided with a continuous row of mastic (10) in order to properly seal the clamp plate and to prevent any leakage of water from the tank.
    In this embodiment the clamping plate (8) has an upper edge (11) that is slightly folded open in the direction of the center of the tank. A shape like this protruding beyond the plane of the plate prevents the plate from bending when the bolts are tightened by increasing the rigidity of the plate. Other embodiments of such a design are possible. This embodiment here also facilitates the installation of the mastic (10) in the space of the folded upper edge (11).
    An upright covering (12) is fitted around the outside of the tank, at the level of the concrete floor, which holds gravel (13) between the covering and the tank. An L-profile (14) is applied to the tank wall and made with shims (15) and fixed to the tank wall (1) by means of silo bolts (16) and with anchor bolts (16) on the concrete floor (2) to prevent that gravel (13) penetrates through the underside of the protective liner (3) and the membrane (4). The raised enclosure (12) is preferably about 15 cm high. The filled enclosure provides an aesthetic appearance to the tank and prevents dirt or other material from entering under the side of the tank.
    The mastic (6, 7, 10) used for sealing is specially made for good adhesion to both the galvanized steel tank and the (EPDM) membrane. Examples of mastics suitable for this purpose are AvascoFlex and AvascoRub or equivalents.
    The inside of the tank (1) can be protected against corrosion and dirt deposits. The water inside the tank can also be treated against dirt deposits. The tank is preferably grounded.
    Figure 2 shows a detailed view of the tank bottom, in which the side walls (1) and the membrane (4) are shown on the bottom. The clamping plate (8) is mounted near the bottom of the tank but could also be mounted at a higher level. Figure 2 shows the empty watertight water tank that is ready to collect water. As can be seen, the clamping plate is mounted on the bottom bottom of the tank.
    权利要求:
    Claims (16)
    [1]
    A water tank for water storage, comprising side walls (1) mounted on a foundation (2) and a membrane (4) covering the foundation and extending upwards on the inner side walls, characterized in that the edge of the membrane (4) ) ends below the water level.
    [2]
    Water tank according to claim 1, characterized in that said membrane (4) is arranged watertight between said inner side walls (1) and a fixing means (8) by means of bolts (9) in pre-arranged holes (5a, 5b) and mastic (6, 7, 10).
    [3]
    Water tank according to claim 1 or 2, characterized in that said membrane (4) extends 10 to 50 cm, preferably 10 to 30 cm, upwards on the side walls (1).
    [4]
    Water tank according to claim 2 or 3, characterized in that at least one row of swell-sealing mastic (7) is arranged between the side walls (1) and the membrane (4) in a continuous watertight manner.
    [5]
    Water tank according to one of claims 2 to 4, characterized in that said fastening means (8) is arranged on the side walls (1) by means of two or more rows (I, II) of bolts (9).
    [6]
    Water tank according to claim 5, characterized in that said two or more rows (I, II) are horizontal.
    [7]
    Water tank according to one of claims 2 to 6, characterized in that a mastic (6) is arranged in each hole (5a, 5b) in an uninterrupted watertight manner.
    [8]
    Water tank according to one of claims 2 to 7, characterized in that a mastic (10) is arranged in a continuous watertight manner between the lower end of the fastening means (8) and the membrane (4), between the upper edge of the fastener (8) and the membrane (4), and between the top edge of the membrane and the side walls.
    [9]
    Water tank according to one of claims 2 to 8, comprising side walls (1) mounted on a foundation (2) and a membrane (4) covering the foundation and extending upwards on the inner side walls, characterized that the edge of the membrane (4) ends below the water level, wherein there is a swelling gap between the membrane and the side wall in a continuous horizontal line, and wherein the swelling gap is above a first and a second horizontal row of holes through which bolts protrude attaching the diaphragm to the side wall via corresponding holes in a continuous clamping plate, or clamping plate segments, extending from below the first row of holes and above the second row of holes, the holes through which the bolts pass are further filled with mastic, and the clamping plate seal the membrane and the side wall watertight by a first perimeter joint of continuous mastic at the top of the clamping plate, and a second perimeter joint of continuous mastic at the bottom of the clamping plate aat.
    [10]
    Water tank according to one of claims 2 to 9, characterized in that said fixing means (8) comprises one or more reinforcing ribs (11) that extend outside the surface of said fixing means.
    [11]
    Water tank according to claim 10, characterized in that said reinforcement rib (11) is a curved edge or a sealing edge.
    [12]
    Water tank according to one of Claims 2 to 11, characterized in that said fastening means (8) comprises one or more peripheral bands (8) clamping plates, each band having two or more horizontal rows (I, II) of pre-arranged holes (5b) corresponding to pre-arranged holes (5a) in the side walls.
    [13]
    Water tank according to one of claims 1 to 12, characterized in that the membrane (4) is made of EPDM.
    [14]
    Water tank according to one of claims 1 to 13, characterized in that a protective layer (3) is provided on the bottom between the foundation (2) and the membrane (4).
    [15]
    A method for constructing a water tank according to claims 1 to 14, wherein said method comprises the steps of: a. Mounting the side walls (1) of a water tank on a foundation (2); b. Spreading a membrane (4) on the foundation (2) and extending said membrane on the inner side walls to a level below the water level; c. Applying a continuous swelling seal (7) between the membrane (4) and the side walls (1); d. Providing a continuous mastic (6) between the membrane (4) and the side wall (1) at the level of the rows (I, II) holes (5a); e. Providing a continuous mastic (6) between the membrane (4) and a clamping plate (8) at the level of the rows (I, II) holes (5b); f. Fixing the clamping plate (8) on the side walls (1) by means of bolts (9) through the holes (5a, 5b) and the mastic (6); g. Applying mastic (10) to the edges of the clamping plate (8) and the diaphragm (4) covering any space between the edge of the diaphragm (4) and the side walls (1) and any space between the clamping plate (8) and the sealing membrane (4); h. Optional, provided with an outer casing around the bottom of the water tank.
    [16]
    Use of a water tank according to one of claims 1 to 14 for watertight storage.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3545640A|1968-09-12|1970-12-08|Exxon Research Engineering Co|Protective gas seals for non-metallic tank bottoms|
    CH484798A|1969-06-24|1970-01-31|Ironflex Ag|Liquid container|
    DE2202096A1|1972-01-18|1973-08-02|Erhard Joos|INNER SHELL MADE OF PLASTIC FOR LINING A CONTAINER|
    US4068777A|1975-11-25|1978-01-17|Metal-Cladding, Inc.|Expansible bottom structure for fiberglass reinforced plastic tanks|
    DE29807285U1|1998-04-22|1998-07-30|Utek Umweltschutztechnologien|Flat bottom tank with leak protection lining|
    DE20104828U1|2001-03-20|2001-07-05|Utek Umweltschutztechnologien|Connection system for fastening a flexible plastic film for leak protection lining on the inside of the tank wall of a storage tank|
    US20040217118A1|2003-04-29|2004-11-04|John Nash|Portable liquid storage tank|
    CN104912208B|2015-06-17|2017-06-13|中冶南方工程技术有限公司|The anticorrosion structure and processing method of a kind of gas chamber cabinet outer bottom margin plate|
    CN112922425A|2021-03-24|2021-06-08|中化二建集团有限公司|Non-bottom bolt connection type water tank anti-leakage construction method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP10170135.7A|EP2409936B1|2010-07-20|2010-07-20|Water tank, method for constructing such a tank and its use|
    EP10170135|2010-07-20|
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