EP3374101A1 - Tank top and tank - Google Patents
Tank top and tankInfo
- Publication number
- EP3374101A1 EP3374101A1 EP16788454.3A EP16788454A EP3374101A1 EP 3374101 A1 EP3374101 A1 EP 3374101A1 EP 16788454 A EP16788454 A EP 16788454A EP 3374101 A1 EP3374101 A1 EP 3374101A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lance
- spray
- tank top
- tank
- nozzle body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007921 spray Substances 0.000 claims abstract description 93
- 238000004140 cleaning Methods 0.000 claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract 2
- 239000011324 bead Substances 0.000 claims description 8
- 235000013361 beverage Nutrition 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0813—Cleaning containers having tubular shape, e.g. casks, barrels, drums by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
- B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
Definitions
- the invention relates to a tank top according to the preamble of claim 1 and a tank according to claim 17.
- tank top On tanks in the food and beverage industry, fittings required for the tanks are combined to form a so-called tank top or tank dome fitting.
- the tank top is eg a unit with at least one vacuum valve, a safety valve, with measuring technology and cleaning technology.
- the tank top which is located at the top of the tank, must be cleaned during tank cleaning on its interior surfaces contacted by the product.
- spray or jet cleaner can not ensure a thorough cleaning of the tank. Therefore, to clean the inside of the tank, spray holes are placed in a lance passed through the tank top to a spray head.
- the bores or nozzles branch off the cleaning medium required for cleaning the tank top from the main stream, which comprises, for example, cleaning devices arranged at the lower end of the lance, such as e.g. supplied a spray head.
- cylindrical holes produce only a very tightly focused spray, which corresponds for example to a conventional spray ball. Due to the thin wall thickness of the lance of usually only 1, 5 to 2.0 mm influencing the beam shape is not possible. This is not a disadvantage for a spray ball whose spray jets have to spread more distant tank wall areas, but is disadvantageous in the cramped conditions, for example in the tank cross piece, since only a very small area can be acted upon directly with the cleaning agent with the tightly focused spray. This means that a large number of holes, possibly with large diameters, is required for safe cleaning, resulting in a high consumption of cleaning medium.
- the invention has for its object to avoid the disadvantages of the solutions available on the market and to ensure a reliable cleaning with a minimum number of holes in the lance despite the limited space in the tank top. Furthermore, a tank is to create, which is characterized by a cost-effective, reliable to clean and thus low-maintenance tank top.
- the nozzle body is easy to manufacture and not limited in its wall thickness by the wall thickness of the lance, so that the holes can be formed as spray nozzles, which support the formation of a wide-fanned, powerful spray or spray cone.
- the surface arrangement provided in the nozzle body generates, e.g. in an annulus, i. at the entrance to the spray nozzles, a strong turbulence, which is essential for the fanning of the rays. Without this surface arrangement, a largely laminar flow would prevail in the annular space and the generated jet shape would be a largely focused jet despite the nozzle shape.
- the combination of the spray nozzles and turbulent flow conditions at the spray nozzles thus produces a wide fanning out of the spray jets.
- the spray jets evenly coat large areas with the cleaning medium, even in the cramped space conditions in the crosspiece of the tank, so that reliable cleaning is ensured with a minimum number of spray nozzles. Furthermore, the turbulence in the spray nozzles reduces their throughput. Overall, the above arrangement leads to a lower detergent consumption and to a more effective cleaning of the crosspiece and its internals.
- the nozzle body has in the center on a passage through which the cleaning medium in the direction of the tank cleaning device or spray head can use approximately the full nominal diameter of the cleaning lance.
- the tank which is connected to a food filling line, is characterized by a low-cost, efficiently cleaned, low-maintenance tank top.
- the nozzle body may have the nozzle body an at least substantially rotationally symmetrical cross-section, and easy to produce. It is expediently a conveniently usable nozzle ring, for example made of metal. Alternatively it could be a connecting flange for the lance.
- the surface arrangement of the nozzle body has an open to the interior of the nozzle body, undercut annular space and in the direction of the main flow downstream of the annulus and then an approximately transversely oriented to the direction of the main flow, with respect to the inner diameter of the lance slightly protruding Fang collar on.
- the catch collar is formed either with circumferentially distributed, individual trapping blades, or passes in the circumferential direction.
- the turbulence in the annulus can be influenced, since the partial introduction of the main flow generates greater turbulence than a closed catch collar.
- the spray nozzles can be arranged at the individual catch blades or in the intermediate spaces between them, wherein the turbulence is directly smaller at the catching blade than in the area between the catching blades.
- the greater the turbulence at the inlet of the spray nozzle the larger the opening angle of the spray cone formed.
- the opening cone of the spray jets can thus be optimally adapted to the requirements by the arrangement and size of the intermediate spaces and the position of the spray nozzles relative to these. Furthermore, only a small part of the nominal cross section of the lance is stressed by the intermediate distances, and thus the flow in the direction of the cleaning device or spray head is less affected.
- the spray nozzles are advantageously fanned spray cone producing cone spray nozzles.
- the spray nozzles are placed in the nozzle body at different angles relative to the axis of the lance to thoroughly clean the product touched surfaces of armatures disposed in the tanktop, the inner wall of the crosspiece, and the outer wall of the lance.
- the inner mouths of the spray nozzles should be within the annulus.
- the wall thickness of the nozzle body is expediently greater than the wall thickness of the lance, at least in the region of the annular space.
- the spray nozzles for dispensing each of a wide-spread spray to the outside, for example, approximately conical, preferably with a radius following a cone-generating, a straight cone-generating, or in that adjoins an inner cylindrical inner portion, an outer cone section.
- the cross section of the spray nozzles may optionally be different from a circular area, for example square rectangular, oval, asymmetric or the like. It may be expedient if the outer mouth of the spray nozzle is about twice as large as the inner mouth. Among other things, it can achieve spray jets, which have an opening angle of about 30 ° or more.
- the annular space has a convexly rounded inner wall and the catching collar or each catching blade has an upper side which rises in the direction of the main flow, preferably concavely curved and harmoniously merges into the inner wall of the annular space.
- sufficient cleaning medium is diverted from the main stream flowing to the spray head and distributed under turbulent flow conditions for the spray nozzles in the annular space.
- the intermediate distances between regularly distributed catching blades can be greater than the circumferential extents of free catching blade ends.
- each catching blade can be approximately trapezoidal, preferably with concavely rounded flanks, which are transferred into the intermediate distances or the inner diameter of the nozzle body.
- a rounded outer wall of the nozzle body forms a protruding beyond the outside of the lance bead, which in the direction of the main flow with only slightly less than Having 90 ° outwardly sloping shorter initial section and a rounded subsequent, with about 45 ° inwardly extending, longer end portion.
- adhering to the outside of the lance and flowing down under gravity cleaning medium is guided around the bead, without tearing, and placed on the underlying outer side of the lance.
- the outside of the bead runs approximately parallel to the inner wall of the annular space.
- the nozzle body has upper and lower annular flanges approximately with the wall thickness of the lance.
- the nozzle body is used with the annular flanges, for example, between separate sections of the lance, preferably welded.
- At least some spray nozzles are inclined at such angles in and / or against the direction of the main stream, that the respective spray jet or spray tangent to the outside of the lance at least or even at an acute angle.
- a nozzle body which has a non-annular shape, but for example, has the shape of a polygon.
- Such an arbitrary shape would, for example, be produced by casting technology.
- a rotationally symmetrical basic shape of the nozzle body is only the preferred and easiest to manufacture variant.
- FIG. 1 is a tank top in perspective view, partially in section, for mounting on a tank
- Fig. 2 shows e.g. an equipment of the tank top of Fig. 1 forming nozzle body R in an axial section
- FIG. 2 is a plan view of Fig. 2
- FIG. 4 is a bottom view to Fig. 2,
- Fig. 5 is an enlarged detail of Fig. 2, and
- Fig. 6 is a non-limiting example of a spray jet image producible with the nozzle body.
- tank top T (or a tank-type armature) which is mounted or mountable, for example, on the top of a tank 1.
- the tank 1 equipped with the tank top T is used, for example, in the food or beverage industry, in particular in beverage filling plants. were used, wherein cleaned in cleaning cycles both the tank and the tank top T inside.
- the tank top T is mounted with an optional flange 2 over an opening 3 of the tank 1 and comprises, for example, a tubular crosspiece 4, to which a vacuum valve 5, an overpressure safety valve 6 and a connection 7 for cleaning medium are attached.
- the terminal 7 is connected via a U-tube 8 to the interior of the crosspiece 4 and contains, for example, in a spacer 12, a valve 11 1.
- a lance 9 Connected to the connection 7 is a lance 9, which is installed approximately vertically in the crosspiece 4 and, in the illustrated embodiment, comprises, for example, an upper, large-diameter section 9a and a lower, small-diameter section 9b, which are connected via a funnel-shaped intermediate piece 10 and an inserted nozzle body R, which has a surface arrangement F.
- cleaning devices 21 1 e.g., as a spray head
- nozzle body R spray holes 11 are provided, which are aligned with the built-on tank top T, the inner wall of the crosspiece 4 and the outer wall of the lance 9 and can be arranged at different angles with respect to the axis X of the lance 9 and the nozzle body R.
- the nozzle body R is here e.g. a nozzle ring R and at least approximately coaxially integrated into the lance 9, e.g. welded, and will be explained with reference to the other figures.
- the nozzle body R has e.g. for manufacturing reasons in approximately rotationally symmetrical cross-section, could alternatively be polygonal or an arbitrarily shaped, hollow connecting flange of the lance 9.
- the nozzle body R formed as a nozzle ring upper and lower coaxial annular flanges 13, whose wall thickness corresponds approximately to the wall thickness of the lance 9, and between which an outwardly projecting bead 14 forming wall 17 is provided, the wall thickness is greater than the wall thickness of the annular flanges 13 and the lance 9, preferably about twice as large.
- the surface arrangement F in the interior of the nozzle ring R serves to create turbulent flow conditions in the region of the spray bores 11, which significantly influence the shape of the spray jets generated by the spray bores 11.
- the spray holes 11 are formed in the nozzle ring R, for example, as spray nozzles S, such as cone jet nozzles, in the wall 17 (see Fig. 5), the inside smaller and larger outside Own estuaries.
- Each outer mouth can be about twice as large as the inside mouth.
- the surface arrangement F comprises an open to the interior of the nozzle ring, concave in cross-section annular space 15 and in the direction 19 of the main flow along the axis X to the annular space 15 subsequent Fang collar 20.
- the inner nozzle orifices should be in the annular space 15.
- the catch collar 20 is formed in the embodiment shown from individual, with intermediate intervals 22 regularly distributed catch blades 21, but can, as indicated by dashed lines at 21 'in FIG. 3, pass in the circumferential direction. 3, the trailing blades 21 are approximately trapezoidal in shape and have concavely rounded flanks 24, which run into the interspaces 22 and the inner diameter of the nozzle ring R.
- Each catching bucket 23 has an upper side 23 which rises opposite to the direction 19 and which, preferably, is concavely rounded and is harmoniously transferred into an inner wall 16 of the annular space 15.
- the free ends of the trailing blades 21 are preferably shorter in the circumferential direction than the intermediate distances 22.
- the inner wall 16 of the annular space 15 has seen in the direction 19 a shorter initial portion 16a, which drops at an angle of slightly less than 90 ° with respect to the axis X to the outside and is converted via a curve in a longer end portion 16b, the lower an angle of about 45 ° with respect to the axis X downwards inwardly.
- the cone spray nozzles S are mounted in the wall 17.
- the bead 18 has an outer side 18 which runs approximately parallel to the contour of the inner wall 16.
- the upper annular flange 13 is adjoined by an initial section 18 sloping outwards at an angle of more than 90 °, which is rounded and converted into a longer end section 18b which is rounded at approximately 45 ° and rounded into the lower annular flange 13 ,
- This contour (egg-shaped or teardrop-shaped) of the bead 18 ensures that cleaning medium flowing down along the outside of the lance 9 and the upper ring flange 13 adheres to the bead 18, is guided to the lower ring flange 13 and further onto the outer wall of the lance 9 and cleans it.
- This cross-sectional concept is only a non-limiting option.
- Fig. 3 illustrates in the plan view of the nozzle ring R of Fig. 2, as several here designed as a cone jet spray nozzles S at different angles in the nozzle ring R, in the initial portion 18 a, are arranged, which may have the same or different effective diameters, while the bottom view of FIG. 4 is also provided at the end portion 18 b at least one cone jet nozzle.
- the cone jet nozzles can be used in the area of Intermediate distances 22 may be arranged, or directly at the trailing blades 21, since both in the area of the trailing blades 21 and in the annular space 15 in the region of the intermediate distances 22 between each two trailing blades 21 turbulent flow conditions are generated.
- FIG. 5 shows a spray nozzle S embodied as a cone jet nozzle which assists in the formation of a spray jet or spray cone K that is broadly fanned out at an angle .alpha.
- the cone jet nozzle is formed, for example, with a radius 26 corresponding to a convexly curved generating line 25 rotationally symmetrical.
- the cone jet nozzle S could have a rectilinear generatrix, or a cylindrical inner portion and a conical outer portion.
- the axis of this cone jet nozzle is inclined at an angle with respect to the axis X, that the wide-spread spray jet or spray cone K at least tangent to the outer wall of the lance 9 or, as shown, meets at an acute angle.
- the cross section of the spray nozzle S could alternatively be non-circular.
- Fig. 6 illustrates, as a non-limiting example, the nozzle ring equipped with seven cone jet nozzles from which emerge in a cleaning cycle, the wide-spread spray cone K shown.
- Three of the spray cones K are inclined so that they impinge on the outside and on the outside of the lance 9 and spread over upper areas in the interior of the tank T of FIG.
- Three further spray cones K are inclined somewhat farther outwards, and are directed, for example, to the vacuum valve 5 and the safety valve 6 and the like in FIG. 1 as well as to the inside of the crosspiece 4.
- a spray cone K is directed downwards and aims, for example, at a further, unspecified highlighted armature of the tank T of Fig. 1.
- nozzle body R is installed in the tank T.
- the cone jet nozzles S open, for example, vertically in the outer side 18.
- the surface arrangement F of the nozzle body R causes in the annular space 15 strong turbulence, resulting in that the spray jets are fanned out of the spray nozzles S far. From a spray nozzle S approximately in the middle between two trailing blades 21, the strongest fanning is generated, while the fanning of a spray nozzle S directly above the fishing blade 21 weaker.
- the turbulences on and in the spray nozzles S generated via the surface arrangement F from the main flow flowing continuously to the spray head 211 are shown in FIG. on with the nozzle cross section causally important for an optimal fanning of the spray jets and also reduce the throughput through the spray nozzles.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015119253.5A DE102015119253A1 (en) | 2015-11-09 | 2015-11-09 | Tank top and tank |
PCT/EP2016/074260 WO2017080733A1 (en) | 2015-11-09 | 2016-10-11 | Tank top and tank |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3374101A1 true EP3374101A1 (en) | 2018-09-19 |
EP3374101B1 EP3374101B1 (en) | 2022-05-18 |
Family
ID=57211478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16788454.3A Active EP3374101B1 (en) | 2015-11-09 | 2016-10-11 | Manhole cover and tank |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3374101B1 (en) |
CN (1) | CN209035038U (en) |
DE (1) | DE102015119253A1 (en) |
DK (1) | DK3374101T3 (en) |
PL (1) | PL3374101T3 (en) |
WO (1) | WO2017080733A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202017103899U1 (en) * | 2017-06-30 | 2018-10-02 | Rudolf Caspary | Whirlpool system for wort clarification during a brewing process |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3139100A (en) * | 1962-01-29 | 1964-06-30 | Andrew G Griparis | Tank sprayer |
US3182669A (en) * | 1963-03-30 | 1965-05-11 | Algonquin Shipping & Trading | Combined tanker service unit |
GB1193454A (en) * | 1967-06-22 | 1970-06-03 | Werner Machinery Company | Apparatus for Washing the Interior of a Bulk Tank |
US3856570A (en) * | 1972-10-11 | 1974-12-24 | Shell Oil Co | Method and apparatus for cleaning the interior of industrial vessels by using rotating nozzle heads |
DE2808176A1 (en) * | 1978-02-25 | 1979-09-06 | Tuchenhagen Fa Otto | Beverage tank interior cleaning control - by contact switches actuated by cleansing fluid jets |
DE19951248C1 (en) * | 1999-10-25 | 2000-11-16 | Tuchenhagen Gmbh | Appts for cleaning a beer storage tank has a housing with an inner float and three connections to give a switched flow of the cleaning and gas media in a simple assembly without using additional energy |
-
2015
- 2015-11-09 DE DE102015119253.5A patent/DE102015119253A1/en not_active Withdrawn
-
2016
- 2016-10-11 PL PL16788454.3T patent/PL3374101T3/en unknown
- 2016-10-11 CN CN201690001329.2U patent/CN209035038U/en active Active
- 2016-10-11 EP EP16788454.3A patent/EP3374101B1/en active Active
- 2016-10-11 DK DK16788454.3T patent/DK3374101T3/en active
- 2016-10-11 WO PCT/EP2016/074260 patent/WO2017080733A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2017080733A1 (en) | 2017-05-18 |
CN209035038U (en) | 2019-06-28 |
PL3374101T3 (en) | 2022-11-21 |
DE102015119253A1 (en) | 2017-05-11 |
EP3374101B1 (en) | 2022-05-18 |
DK3374101T3 (en) | 2022-08-15 |
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