EP2567170A2 - Dispositif d'échange thermique, utilisation et ensemble d'échange thermique - Google Patents

Dispositif d'échange thermique, utilisation et ensemble d'échange thermique

Info

Publication number
EP2567170A2
EP2567170A2 EP11720379A EP11720379A EP2567170A2 EP 2567170 A2 EP2567170 A2 EP 2567170A2 EP 11720379 A EP11720379 A EP 11720379A EP 11720379 A EP11720379 A EP 11720379A EP 2567170 A2 EP2567170 A2 EP 2567170A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
wall
heat
return
heat exchange
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.)
Withdrawn
Application number
EP11720379A
Other languages
German (de)
English (en)
Inventor
Thomas Uhrig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uhrig Kanaltechnik GmbH
Original Assignee
Uhrig Kanaltechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uhrig Kanaltechnik GmbH filed Critical Uhrig Kanaltechnik GmbH
Publication of EP2567170A2 publication Critical patent/EP2567170A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C2001/005—Installations allowing recovery of heat from waste water for warming up fresh water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the invention relates to a heat exchanger device, a use of a heat exchanger device for forming a heat exchanger assembly and a heat exchanger assembly.
  • One aspect of the present invention relates to a heat exchange device for introduction into a sewage pipeline extending along a longitudinal direction L comprising:
  • a heat exchanger wall made of a rigid, heat-conducting material with
  • a sewage side which is designed to contact with sewage
  • an outer side which is designed to face the sewage pipeline inner wall and to be arranged, at least in regions, directly or indirectly in contact with the sewage pipeline inner wall,
  • heat exchanger wall forms the inner wall of a tubular body
  • heat exchanger wall and the heat exchanger chamber wall are at least partially spaced apart such that between the heat exchanger wall and the heat exchanger chamber wall partially a heat exchanger chamber is formed
  • the heat exchange chamber is connectable by means of a flow and a return to the outside, wherein the flow and the return are arranged on the heat exchanger wall.
  • the heat exchanger device is adapted to be introduced into a sewage pipeline, wherein the sewage pipeline extends substantially along the longitudinal direction L and wherein the waste water flows in the sewage pipeline substantially along the longitudinal direction L.
  • the longitudinal direction L is parallel to the cylinder axis.
  • Introduction according to the invention comprises both the subsequent introduction along the longitudinal direction L into an existing sewage pipeline and the production or formation of a sewage pipeline or a sewage pipeline element including the heat exchanger device.
  • the heat exchanger device may be at least partially surrounded by the material of the sewage pipeline.
  • the heat exchanger device may at least partially be concreted in, wherein the wastewater side, which is designed to contact with wastewater, remains substantially free of concrete.
  • the heat exchanger device by means of the formed by the heat exchanger wall inner wall of the tubular body itself at least partially forms the sewage pipeline or sewage piping inner wall.
  • the formed tubular body of the inner wall and / or the heat exchanger chamber wall is formed pressure-tight.
  • the heat exchange device may advantageously be positioned in direct contact with the surrounding soil, with the further sewage pipeline extending upstream and downstream.
  • a sewage pipeline can be at least partially replaced by the heat exchanger device, which can be replaced, for example, easily clean wastewater pipelines and thus rehabilitated.
  • the heat exchanger device is further designed so that the waste water is in contact, i. at least in thermal contact, with the waste water side of the heat exchanger wall, which is formed of a thermally conductive rigid material, preferably a metal and in particular a corrosion-resistant stainless steel.
  • the thermal contact refers to the transition of heat energy from the wastewater into the heat exchanger wall and vice versa.
  • the contact may comprise, in addition to a thermal contact, in particular a direct wetting of the heat exchanger wall by wastewater.
  • the heat exchanger wall forms the inner wall of a tubular body, i. the wastewater can be passed through the closed tubular body.
  • the heat exchange device is configured to form, by means of the heat exchanger wall, an inner heat exchanger pipeline within the sewage pipeline, through which the wastewater is then passed.
  • the heat exchanger wall and the heat exchanger chamber wall are preferably arranged at such a distance from one another that the inside of the heat exchanger wall lies opposite the inside of the heat exchanger chamber wall. Between the inner sides of the heat exchanger wall and the choir (2004)terrorism the heat exchanger chamber is formed.
  • the heat exchanger chamber can be charged via the feed with a heat exchange medium (for example water) and emptied via the return line. That is, the heat exchange chamber is hydraulically connectable to the exterior by means of the flow and the return and otherwise substantially fluid-tight or waterproof with respect to the exterior.
  • the exterior may be, for example, the surrounding atmosphere.
  • the exterior may comprise the volumes enclosed by conduits, other heat exchangers or heat pumps.
  • the exterior may be an external volume hydraulically communicating via the flow or return with the volume of the heat exchange chamber, the external volume not contacting the heat exchange chamber wall or being at least partially enclosed by the heat exchange chamber wall.
  • the inside of the heat exchanger wall is designed to at least partially contact with the heat exchange medium, i. at least thermally contact, so that the wastewater indirectly via the heat exchanger wall with the heat exchange medium can be brought into thermal contact.
  • the wastewater is preferably not thermally contacted by means of politicianstauscherhuntwandung with the heat exchange medium. Therefore, the heat exchanger chamber wall may preferably be formed of a thermally insulating material, for example of plastic.
  • the heat exchange medium by means of a thermally insulating heat exchanger chamber wall opposite the
  • Wastewater pipeline can be thermally insulated.
  • the heat exchanger chamber wall is at least partially spaced from the sewage pipeline can be arranged, so that the heat exchange medium and the sewage pipeline are advantageously further thermally decoupled.
  • the heat exchanger wall is formed substantially as a cylindrical tube.
  • the feed line connected to the feed line and the return line connected to the return line can be wetted by the waste water which flows in the tube formed by the heat exchanger wall. Therefore, the lines are particularly preferably formed of a corrosion-resistant material, such as stainless steel or plastic.
  • substantially may describe a deviation from a desired direction, in particular a deviation within the manufacturing accuracy and / or within the necessary accuracy, so that an effect is maintained, as it is present in the desired direction "may therefore include a directional deviation of less than about 20 degrees, less than about 10 degrees, less than about 5 degrees, preferably less than about 1 degree, from a desired direction.
  • the term “essentially” encompasses the term “identical”, ie, "without deviation from a desired direction.”
  • the supply and the return are arranged in the region of the sewage piping ridge, Advantageously, this arrangement ensures better venting.
  • the efficiency of the heat exchanger apparatus is increased because the poorly heat-conductive gases can be reliably removed from the heat exchanger apparatus ,
  • the flow and / or the return are arranged on the heat exchanger chamber wall.
  • a supply line connected to the supply line and a return line connected to the return line are preferably in the area between the Heat exchanger chamber wall and a sewage pipe inner wall can be arranged.
  • the flow and return lines are spatially separated from the effluent by the tubular heat exchanger wall and the heat exchanger chamber wall.
  • corrosive chemicals contained in the wastewater can not corrode the flow and return line and items entrained in the wastewater do not get caught on these lines.
  • the heat exchanger chamber wall is partially flat and is preferably used as a support of the flow line and / or the return line.
  • the flow and / or the return can be arranged at a distance from the heat exchanger chamber wall. More preferably, the flow and / or the return may be substantially completely enclosed by the material (e.g., concrete) from which the sewage pipeline is formed.
  • the heat exchanger chamber wall and the heat exchanger wall may be formed substantially cylindrical.
  • the heat exchanger device further comprises a protective element, wherein the protective element with two opposite ends thereof contacted with the heat exchanger wall, so that supply and return are arranged between the protective element and the heat exchanger wall.
  • the protective element is preferably designed as a water-impermeable plate, whereby the protective element advantageously prevents corrosive chemicals and / or articles entrained with the waste water from attacking or adhering to the lines.
  • the protective element may be formed as a mesh plate or grid, so that particles with a predeterminable maximum particle diameter can not pass through the mesh plate or the grid.
  • the wastewater is more space within the heat exchanger device available, the lines are protected from objects that are carried along with the wastewater, so that these objects can not stick to the pipes.
  • the protective element is made of a corrosion-resistant material, for example stainless steel or plastic, and in particular fastened with two opposite ends to the heat exchanger wall, for example by welding.
  • the return in the longitudinal direction L is spaced from the lead.
  • a heat exchange medium can flow along the longitudinal direction as far as possible through the heat exchanger chamber.
  • the heat exchange chamber is formed from the flow to the return spirally around the longitudinal direction L rotating.
  • a uniformly distributed heat absorption is achieved by the heat exchange medium via the heat exchanger wall. Since the heat exchange medium is advantageously guided in a spiral about the longitudinal direction L from the flow to the return, the contact surface and the contact time in which the heat exchange medium with the politicians (2004)zielerwandung thermally contacted, compared to a direct flow path from the flow to the return can be extended, so that the thermal energy transition is improved.
  • the heat exchange device comprises a helical spacer disposed between the heat exchanger wall and the heat exchanger chamber wall.
  • the spacer element causes a substantially constant distance between the two walls.
  • the helical spacer forms in a simple manner a preferred spiral flow path from the flow to the return.
  • the spacer element is formed substantially in the form of a spiral spring, wherein the spacer element has a substantially constant diameter along its longitudinal extent.
  • the spacer element may be made of a wire having a diameter of about 1 mm to about 5 mm in diameter or a narrow metal strip having a width of about 5 mm 10 mm and a thickness of about 1 mm to 2 mm be educated.
  • the spacer element made of stainless steel.
  • the spacer element may also consist of a less noble metal or a plastic.
  • a corrosion inhibitor In order to prevent the corrosion of a base metal can be added to the heat exchange medium, a corrosion inhibitor.
  • the heat exchange chamber substantially completely encloses the heat exchanger wall.
  • the heat exchanger device preferably has connection configurations for the pressure-tight and tension-resistant connection of one or more further heat exchanger devices in the end regions.
  • the end regions of the heat exchanger device may preferably have clamping, plug-in and / or screw connections in order to form a firm connection between two similar heat exchanger devices.
  • flow and / or return are each connected to a portion of a flow line or a return line.
  • the portion of the flow line or return line is designed as a pipeline, wherein the pipe is attached to the heat exchanger device.
  • the portion of the flow line or return line may be attached to the outside of the heat exchanger chamber wall, wherein the length of the portion along the longitudinal extent L is preferably substantially equal to the length of the heat exchanger wall along this direction.
  • the end portions of the sections of the flow line or return line of the heat exchanger device may have sleeves and / or pipe connectors, so that on the one hand, a hydraulic connection between the sections of the flow line or return line of two similar heat exchanger devices can be produced and on the other a solid mechanical connection can be formed.
  • the pressure tightness is designed so that the pending in the supply and return lines pressure the connection between each Heat exchange devices can not solve.
  • Tensile strength between the heat exchanger devices should therefore be advantageously prepared to ensure that in the case of repair or replacement, there is the possibility of being able to pull the individual, interconnected heat exchanger devices in the sewage pipeline, for example, in the direction of a channel entry, without these separating from each other.
  • the heat exchanger device comprises a vent valve, preferably a pressure relief valve (61), by means of which the heat exchanger chamber is hydraulically connectable to the outside.
  • the vent valve may be formed as a screw or closure, which closes a vent opening.
  • the heat exchanger chamber can be vented manually, especially during the initial installation.
  • the vent valve is a pressure relief valve, so that a fluid (gas and / or liquid) present in the heat exchanger chamber escapes when the fluid pressure in the heat exchanger chamber exceeds a predeterminable threshold value.
  • the heat exchanger chamber is thereby automatically and / or remotely vented, in which over the flow an overpressure in the heat exchanger chamber is applied.
  • At least partially recessed elements and / or elevation elements are arranged, the contour of which runs along a contour direction K, which is substantially different from the longitudinal direction L, to disturb a laminar sewage flow along the longitudinal direction L.
  • a laminar flow forms, so that at a short distance to the edge (below the Prandtl boundary layer) arbitrarily thin wastewater layers flow over each other, without mixing with each other.
  • the colonization of the heat exchanger wall by microorganisms is advantageously minimized by the partial formation of depression elements and / or elevation elements, since the microorganisms do not find any support in the areas with increased wastewater flow rate and the supply of nutrients is reduced in the areas of reduced wastewater flow rate. Consequently, colonization of the heat exchanger wall by microorganisms is permanently minimized, thereby reducing the maintenance or cleaning effort, and the efficiency of the heat exchanger device is permanently maximized, whereby the economy is increased.
  • the recess elements and / or elevation elements cause a local stiffening of the heat exchanger wall, so that a lower material thickness of the wall material is necessary to achieve a predetermined torsional or bending strength compared to a plate-shaped wall material without recessed elements and / or elevation elements. Further advantageously, the lower material thickness of the wall material led to an improved thermal Contact or improved heat transfer.
  • recessed elements for example, beads
  • / or elevation elements for example beads or welded material
  • the recess elements and / or elevation elements form a closed contour with the surface of the heat exchanger wall.
  • the tangent at any point of the contour points in the direction of the contour direction K, wherein the contour direction K is substantially different from the longitudinal direction L.
  • at least 50%, preferably at least 70%, more preferably at least 85% of the contour comprises points whose contour direction K is different from the longitudinal direction L, i. preferably deviates by more than 10 degrees, more preferably by more than 45 degrees from the longitudinal direction L.
  • the recessed elements and / or elevation elements act as a bluff body in the wastewater stream, so that turbulence is generated.
  • a heat exchanger device for introduction into a sewage pipeline extending along a longitudinal direction L comprising: a heat exchanger wall made of a rigid, heat-conducting material having a sewage side which is adapted to contact sewage and an inside adapted to at least partially contact with a heat exchange medium, and a politicians (2004)bergererschwandung with an inner surface which is designed to contact at least partially with the heat exchange medium, an outer side, which is facing the Abwasserrohr Obersinnenwand and at least partially with the sewage pipeline inner wall indirectly or directly be arranged to be contacting, wherein the heat exchanger wall and the heat exchanger chamber wall are at least partially spaced apart such that between the plantesammlungerwandun g and the heat exchanger chamber wall, a heat exchange chamber is formed in regions, and wherein on the waste water side of the plantezieldung At least partially recess elements and
  • such a heat exchanger device can also have the features described below with respect to the recessed elements and / or elevation elements. It is further understood that such a heat exchange device may also have the further features described in this application with regard to the flow, the return, the spacer element and the materials used.
  • the recessed elements and / or the elevation elements each have a wall, wherein the wall and the wastewater side are at least partially substantially perpendicular to each other.
  • this achieves maximum disruption and perturbation of the wastewater.
  • the recessed elements and / or the elevation elements each have a wall, wherein the transition region between the wall and the wastewater side has a radius of curvature of less than 2 mm. More preferably, the radius of curvature is less than 1 mm.
  • an edge is formed by a small radius of curvature, through which a laminar flow of the wastewater is effectively disturbed.
  • the recessed elements and / or the elevation elements have a bottom or a plateau, wherein the bottom or the plateau extends substantially parallel to the wastewater side.
  • ground and plateau are used interchangeably in this context and designate the area of a depression or elevation which is surrounded by a wall, preferably in a substantially flat or flat area.
  • the amount of offset between the bottom and the sewer side along the normal N of the waste side is greater than 2 mm. More preferably, the amount of offset is greater than 3 mm, greater than 5 mm, but especially less than 10 mm.
  • the local disturbance is advantageously also greater, but can sediment in wells deeper than 10 mm particles and get caught on surveys higher than 10 mm mitströmende objects and set.
  • the recessed elements on the waste water side of the heat exchanger wall are such, e.g. formed as beads, that the inside of the heat exchanger wall in the region of the recess elements, at least partially contacted the inside of the heat exchanger chamber wall.
  • the heat exchanger chamber is arranged by means of the heat exchanger wall and the thereto
  • Heat exchanger chamber wall formed, wherein the at least partially spaced apart the inner wall of the heat exchanger wall of the inner wall of the heat exchanger chamber wall by means of the recesses. Further preferably, the spacing can also be effected by web-like or spiral-shaped separating elements or webs or baffles.
  • the web-like separating elements need not necessarily be arranged in the longitudinal direction L, but may also be formed obliquely or transversely thereto.
  • a single separating element may be provided in the form of a helical spring which is arranged between the heat exchanger wall and the heat exchanger chamber wall and is preferably fastened therewith so that advantageously the heat exchange medium can be conducted in a simple manner on a spiral flow path from the feed line to the return line.
  • the flow path of the heat exchange medium from the flow to return within the heat exchanger chambers is locally disturbed by the wells, so that a flow of the heat exchange medium can be turbulent, whereby the thermal contact between the heat exchange medium and the inner wall of the mich (2004) appriserwandung improved and the efficiency of the heat exchanger device is increased.
  • the recess elements and / or elevation elements are formed in a circle with a center M and a diameter D.
  • the diameter D is between 20 mm and 50 mm, more preferably between 25 mm and 40 mm.
  • the distance between the centers M of adjacent recess elements to each other is greater than twice the diameter (2 D) and less than five times the diameter (5 D). Accordingly, the distance between adjacent centers M between 40 mm and 250 mm, more preferably between 50 mm and 200 mm, more preferably between 40 mm and 100 mm, more preferably between 100 mm and 250 mm.
  • it is prevented in the above-mentioned geometric conditions that locally forms a laminar flow.
  • One aspect of the present invention relates to a use of at least one heat exchanger device according to the invention for forming a heat exchanger arrangement
  • the longitudinal or transverse extent of the rigid heat exchanger device can be selected so that it can be introduced through an above-ground channel entry of the respective sewage pipeline.
  • a longitudinal or transverse extent of about 80 cm, more preferably of 62.5 cm should not be exceeded.
  • the individual heat exchanger devices can be introduced through the numerous existing channel entrances in the sewage pipeline.
  • a plurality of individual heat exchanger devices are introduced into the sewage pipeline and connected to each other. Since the outer diameter of the heat exchange device is smaller than the inner diameter of the sewage piping, a gap is formed between the inner wall of the sewage piping and the outside of the heat exchanger device.
  • the heat exchanger device is located directly in regions on the Abwasserrohrinnenwandung.
  • a filler is arranged between the heat exchanger device and the inner wall of the sewage pipeline.
  • the filler is preferably thermally insulating to thermally isolate the heat exchanger device from the cold soil.
  • the filler may be thermally conductive to additionally utilize the thermal energy of a warm soil by means of the heat exchanger device.
  • the use of the proposed heat exchanger devices is particularly suitable in the inner city area, where digging up to reach the sewage pipeline is generally not possible. However, just in the inner city area enough channel entrances are available, which allow introduction of the heat exchanger devices in the sewage pipeline. It is understood that in a known manner, the heat exchanger chambers of the individual heat exchanger devices are connected to the flow and return lines, so that the cold heat exchange medium from the heat pump via the flow line, through the aforementioned heat exchanger chambers and finally in the heated state via the return line back to Heat pump can flow. In the configuration of the heat exchanger chambers and also the designs of the lines for the flow, return and the distribution of the heat exchange medium can be used advantageously to the well-known Tichelmann system to optimize the efficiency of the heat exchanger devices.
  • a heat exchanger device can also be designed as an end or initial element and have a funnel-shaped region at one of its free ends, so that the cross-section of the sewage pipeline through which the sewage flows continuously narrows towards the heat exchanger.
  • a step in the sewage pipeline is avoided, at which objects or particles entrained in the sewage could be deposited.
  • the ramp-like formation may be shorter or longer to make the slope correspondingly flatter or larger.
  • One aspect of the present invention relates to a waste heat exchanger assembly comprising:
  • a flow line which connects the return of the heat pump with the headers of the at least two heat exchanger devices and
  • a return line which connects the flow of the heat pump with the returns of the at least two heat exchanger devices.
  • a plurality of sections of interconnected heat exchanger devices are provided, since the wastewater only over a certain distance away in terms of its temperature can be exploited economically. It can therefore not be provided with heat exchanger devices provided areas of the sewer pipe in which new wastewater can accumulate, which is then in turn fed to a new range of heat exchanger devices for energy.
  • a house connection module is provided between two heat exchanger devices to allow a waste water supply from a wastewater inlet.
  • the house connection module comprises a wall to which the flow, return and distribution line are attached.
  • the wall is designed analogously to the heat exchanger chamber wall and in particular has its outer diameter.
  • the house connection module comprises an opening which is formed in the wall so as to be connected to a waste water supply line.
  • the house connection module has no heat exchange chamber.
  • the heat exchanger assembly comprises at least one flush valve which, viewed along the flow direction L of the waste water, is arranged at a distance from the introduced heat exchanger devices.
  • the rinsing or surge valve is used for temporary interruption of the sewage flow.
  • the flush valve is arranged in the region of a channel entrance, since there is more free space for installation. Such a flush valve can accumulate the wastewater at short intervals, in order to then let it flow over the wastewater sides of the heat exchanger devices.
  • the formation of a Sielhaut be further reduced because the surge-like outflow of the waste water takes place turbulently, so that the formation of a Sielhaut can be reduced.
  • the amount of effluent flowing can be controlled so that the amount of sewage accumulating over a variable amount of time can be led away in a constant manner via the heat exchanger devices. For example, because at night the amount of waste water is low, the wastewater in case of a higher attack, for example in the early evening, by means of the relevant Slider dammed and fed continuously over night with decaying wastewater accumulation the heat exchanger devices. Of course, due to the generated surge, such a slide also causes a cleaning effect by discharging heavier objects, which can deposit on the heat exchanger devices.
  • Figure 1 is a schematic block diagram of a heat exchanger assembly
  • Figure 2 is a cross section through a sewage pipeline with a
  • Figure 3 a cross section through a sewage pipeline with a
  • Figure 4a a plan view of a heat exchanger wall with a circular
  • FIG. 4b shows a cross section through a heat exchanger wall with circular depression elements
  • Figure 5a a plan view of an arrangement of circular
  • FIG. 5b shows a plan view of an arrangement of rectangular depression elements.
  • FIG. 1 shows a schematic block diagram of a heat exchanger assembly 1 with a heat exchanger device 3a in a sewer pipe 5. Shown are a flow line 15, a return line 17 and a manifold 19, which are arranged on the heat exchanger elements 3a-c.
  • the feed line 15 is connected to the headers 21 and the return line 17 to the return lines 23 of the heat exchanger elements 3a-c.
  • the distribution line 19 and the return line 17 are preferably led out of the sewage pipeline through a channel entry (not shown) in order to be connected to a heat exchanger system 25, which is usually arranged aboveground above, with a heat pump 27.
  • a heat exchange medium 29 is guided on the principle of Tichelmann through the corresponding lines.
  • the cold heat exchange medium 29 is passed from the heat pump 27 via the distribution line 19 to the farthest from the heat pump 27 point of the line system and distributed from there by means of the flow line 15 to the headers 21 of the individual heat exchanger devices 3a-c.
  • the cold heat exchange medium 29 then flows through the heat exchanger chambers 31 ac of the individual heat exchanger devices 3a-c and finally in the heated state via the return line 17 back to the heat pump 27.
  • the heat exchange medium 29 in different ways through the heat exchanger chambers Flow 31 ac.
  • the heat exchange medium 29, in particular laminar flows directly from the feed 21 to the return 23 of the heat exchanger chamber 31a.
  • the heat exchanger chambers 31 b and 31 c are formed such that the heat exchange medium 29, in particular turbulent, flows on an extended path from the flow 21 to the return line 23.
  • This path extension for example, as in the heat exchanger chamber 31c, by means of rectilinear separation elements or webs or baffles 33 or, as in the heat exchanger chamber 31 b, carried by means of interference bodies 35.
  • a hydraulic short circuit is reliably avoided, so that the efficiency of the heat exchanger assembly 1 is maximum.
  • the desired efficiency of the heat exchanger assembly 1 and the resulting wastewater quantity and their temperature and the corresponding sewage piping cross sections and thus also the dimensions of the heat exchanger devices 3a-c finally determined the total number of successively arranged heat exchanger devices 3a-c.
  • FIG. 2 shows a cross section through a heat exchanger arrangement 1 with a heat exchanger device 3 a in a sewage pipeline 5.
  • a heat exchanger chamber wall 47 comprises an outer side 49, which is designed to face the inner wall 13 of the sewage pipeline 5 and to be arranged at least partially spaced from the inner wall 13. Between the inner wall 13 of the sewage pipe 5 and the outer side 49 of the heat exchanger device 3a, a gap 7 is formed, since the outer diameter of the heat exchanger device 3a is smaller than the inner diameter of the sewage pipeline 5.
  • the gap 7 can be at least partially filled with a filler 9.
  • the filler 9 may be thermally insulating to insulate the heat exchanger device 3a from the ground. Alternatively, the filler 9 may be thermally conductive to additionally use the geothermal heat by means of the heat exchanger device 3a.
  • the filler 9 serve as a support of the heat exchanger device 3a. More preferably, however, the heat exchanger device 3a can also rest directly in regions on the sewage pipe inner wall 13.
  • the kilometersleyleywandung 47 of the heat exchanger device 3a is always at least partially spaced from the sewer pipe 5, so that the flow line 15 and the return line 17 in the area between the politicians (2004)leyerwaitwandung 47 and the Abwasserrohrinnenwandung 13 can be arranged.
  • the outer side 49 of the heat exchanger chamber wall 47 faces the Abwasserrohrinnenwandung 13.
  • the heat exchanger chamber wall 47 is partially flat and is preferably used in areas as a support of the supply line 15, the return line 17 and / or the manifold 19, which are arranged between the politicians appriserschdung 47 and the inner wall 13 of the sewer pipe 5.
  • the lines are thereby protected against mechanical influences from the direction of the sewage piping interior.
  • a heat exchanger wall 43 is formed of a rigid, heat-conducting material, wherein the waste water side 41 is designed, at least partially
  • Wastewater 45 to contact thermally or wetted by wastewater 45
  • On the wastewater side 41 can at least partially recess elements
  • longitudinal direction L is perpendicular to the plane of the page and is for
  • the heat exchanger wall 43 and the heat exchanger chamber wall 47 are preferably interconnected by one or more webs (not shown). This connection can preferably be done by welding.
  • the heat exchanger wall 43 and the diary (2004) devisdungdung 47 are spaced from each other to form between the heat exchanger wall 43 and the choir (2004) devisillerwaitwandung 47 partially a heat exchanger chamber 31a, by means of a flow line 21 and a flow line 15 and a return line 23 and a return line 17 to the outside hydraulically connected is.
  • the feed line 15, the return line 17 and / or the distribution line 9 can be arranged in the region of the Abwasserrohr effetsfirst 11.
  • the heat exchange device 3 a may be introduced into the sewage piping 5 such that the flow line 15, the Return line 17 and / or the distribution line 19 are arranged in the region of the sewage pipeline sole 12.
  • the flow line 15, the return line 17 and / or the manifold 19 serve as a support of the heat exchanger device 3a and indeed with the area with which they touch the Abwasserrohrinnenwandung 13 or rest against this.
  • FIG. 3 shows a cross section through a heat exchanger arrangement 1 with a further embodiment of a heat exchanger device 3b in a sewage pipeline 5.
  • a heat exchanger chamber 31 b is analogous to the embodiment described above by means of a flow line 21 and a flow line 15 and a return line 23 and a return line 17 to the outside hydraulically in communication. In this embodiment, however, the flow 21 and the return 23 are arranged on the heat exchanger wall 43.
  • a protective member 37 is disposed on the heat exchanger wall 43 such that two opposite ends 39a, 39b of the protective member are connected to the heat exchanger wall 43 so that the flow 21 and return 23 between the protective member 37 and the heat exchanger wall 43 are arranged or enclosed.
  • the distribution line 19 may also be arranged between the protective element 37 and the heat exchanger wall 43.
  • Protective member 37 prevents objects entrained with waste water 45 from getting entangled with the casing, which would disadvantageously reduce the line cross-section available for the wastewater.
  • the protective element 37 may be formed as a water-impermeable plate 37, whereby the flow line 15, the return line 17 and the distribution line 19 are protected from the waste water or separated therefrom.
  • the lines are then protected from the corrosive wastewater 45.
  • the protective element 37 may preferably be designed as a sieve plate 37, so that particles with a predeterminable maximum particle diameter can not pass through the sieve plate 37.
  • the sewage 45 more space within the heat exchanger device 3b available, the lines, flow and return and their fasteners are protected from objects that are carried along with the wastewater 45 and can attach themselves to it.
  • the protective element 37 is made of a corrosion-resistant material, such as stainless steel or plastic.
  • the feed line 15, the return line 17 and / or the distribution line 19 are suitably arranged in the region of Abwasserrohr effetsfirst 11 or in proper operation of the heat exchanger device 3b in the region of Abwasserrohr effetsfirstes 11, since the protective element 37 does not act as a heat exchange surface and therefore preferably not with the Wastewater 45 should contact.
  • FIG. 4a shows a plan view of a heat exchanger wall 43 in the unrolled or not yet curved state with circular depression elements 53.
  • a cross section through the heat exchanger wall 43 along the route A-B is shown in FIG. 4b.
  • the heat exchanger wall 43 is formed of a thermally conductive material, wherein the waste water side 41 is designed, at least partially Wastewater thermally to contact or be wetted by wastewater.
  • Recessed elements 53 are arranged on the wastewater side 41 at least in sections, the contour of which runs along a contour direction K, which is substantially different from the longitudinal direction L, in order to disturb a laminar wastewater flow along the longitudinal direction L.
  • the recessed elements 53 are preferably designed as circular beads or press-fits, which have a circumferential wall 55 and a bottom 57.
  • the wall 55 extends substantially perpendicular to the surrounding area of the waste water side 41, while the bottom 57 extends substantially parallel thereto.
  • the amount of the offset between bottom 57 and surrounding wastewater side 41 is preferably greater than 2 mm, more preferably greater than 3 mm, in particular greater than 5 mm, but preferably less than 10 mm.
  • the diameter of the recessed elements 53 is preferably between 20 mm and 50 mm, wherein the distance of the centers M of adjacent recesses 53 to each other is greater than twice the diameter (2 D) and less than five times the diameter (5 D).
  • the heat exchanger wall 43 and the sauleyerschwandung 47 are spaced apart from each other in regions to form between the heat exchanger 43 and the michleyerwaitdung 47 partially a heat exchanger chamber 31 b, which is hydraulically connected by means of a flow and a return to the outside.
  • the heat exchanger wall 43 and the heat exchanger chamber wall 47 can be connected to one another in the region of the bottoms 57 by one
  • the formation of a Sielhaut on the is reduced by means of the local variation of the flow rate of the waste water, wherein the local variation is generated by the recess elements 53.
  • the recessed elements 53 cause a Stiffening of the heat exchanger wall 43, so that compared to a flat wall, the same torsional or bending strength can be achieved with a lower material thickness of the wall material, whereby an improved thermal contact or an improved heat transfer is achieved.
  • the heat exchanger wall 43 and the heat exchanger chamber wall 47 are preferably connected to one another or along the free ends 51 of the heat exchanger wall 43. This connection can preferably be effected by welding and / or by crimping.
  • the heat exchanger wall 43 shown in FIG. 4a has in the end regions a connection configuration 59 for the tensile connection or for fastening a further heat exchanger wall (not shown).
  • the attachment is preferably by screwing, wherein the connection configuration 59 are preferably holes 59 with or without internal thread. Alternatively or additionally, the connection configuration 59 may have clamping and / or plug connections.
  • the heat exchanger wall 43 further preferably comprises a vent valve 61, so that the heat exchanger chamber 31 b is hydraulically connectable to the outside by means of the vent valve.
  • the vent valve 61 may preferably be a pressure relief valve or a sealing screw.
  • FIG. 5a shows a top view of an arrangement of circular depression elements 53.
  • the depression elements 53 form a closed contour 63 with the surface of the heat exchanger wall 43 or with the wastewater side 41.
  • the tangent at any point of the contour 63 points in the direction of the contour K.
  • Contour direction K is different at least 50%, preferably at least 70%, more preferably at least 85% of the points of the contour of the longitudinal direction L, wherein the direction difference between the contour direction K and the longitudinal direction L at these points preferably greater than 10 degrees, particularly preferred is greater than 45 degrees.
  • the recess elements 53 act as a disruptive body in Wastewater flow, so that turbulence is generated.
  • the diameter of the circular recess elements 53 is preferably between 20 mm and 50 mm, wherein the distance between the centers M of adjacent recess elements 53 to one another is greater than twice the diameter (2 D) and smaller than five times the diameter (5 D).
  • FIG. 5b shows a plan view of an arrangement of rectangular elevation elements 53.
  • the tangent at any point of the closed contour 63 with the contour direction K is also at least 50%, preferably at least 70%, more preferably at least 85% of the points of the contour from the longitudinal direction L different, wherein the direction difference between the contour direction K and the longitudinal direction L at these points is preferably greater than 10 degrees, more preferably greater than 45 degrees.
  • the elevation elements 53 act as a disruptive body in the wastewater stream, so that turbulence is generated.
  • the width of the elevation elements 53 is preferably between 2 mm and 20 mm, the distance between adjacent elevation elements 53 being greater than twice the width and less than five times the width.
  • the recess or elevation elements 53 may in particular also have a contour 63 which is substantially triangular, square, hexagonal, oval and / or wavy. Furthermore, the individual indentation or elevation elements 53 may be mutually random, trigonal, square, rectangular, or hexagonal.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un dispositif d'échange thermique destiné à être inséré dans une conduite d'eaux usées s'étendant dans un sens longitudinal L, ce dispositif comprenant : une paroi d'échange thermique en matériau rigide thermoconducteur, présentant une face eaux usées conçue pour être au contact des eaux usées et une face interne conçue pour être en contact au moins en partie avec un agent d'échange thermique; une paroi de chambre d'échange thermique comportant une face interne, conçue pour être en contact au moins en partie avec l'agent d'échange thermique, et une face externe, conçue pour être orientée vers la paroi interne de la conduite d'eaux usées et pour être placée au moins en partie en contact direct ou indirect avec la paroi interne de la conduite d'eaux usées. La paroi d'échange thermique forme la paroi interne d'un corps tubulaire, la paroi d'échange thermique et la paroi de chambre d'échange thermique sont disposées au moins partiellement à une certaine distance l'une de l'autre de manière à former partiellement entre elles une chambre d'échange thermique, la chambre d'échange thermique peut être reliée à l'extérieur par une canalisation d'arrivée et une canalisation de retour. L'invention porte également sur une utilisation et sur un ensemble d'échange thermique. Selon l'invention, la canalisation d'arrivée et la canalisation de retour sont disposées contre la paroi d'échange thermique.
EP11720379A 2010-05-07 2011-05-03 Dispositif d'échange thermique, utilisation et ensemble d'échange thermique Withdrawn EP2567170A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010019734A DE102010019734A1 (de) 2010-05-07 2010-05-07 Wärmetauschervorrichtung, Verwendung und Wärmetauscheranordnung
PCT/EP2011/002201 WO2011138011A2 (fr) 2010-05-07 2011-05-03 Dispositif d'échange thermique, utilisation et ensemble d'échange thermique

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EP2567170A2 true EP2567170A2 (fr) 2013-03-13

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DE102014000083B4 (de) 2014-01-02 2017-12-07 Dr. Mirtsch Gmbh Verfahren zum Herstellen einer partiell dreidimensional wölbförmig strukturierten Materiaibahn, partiell dreidimensional wölbförmig strukturierte Materialbahn, Verwendung derselben und eine Vorrichtung zur Herstellung derselben
DE102018003689A1 (de) * 2018-04-19 2019-10-24 Uhrig Energie Gmbh Wärmetauscherelement, Wärmetauschermodul und Wärmetauschersystem

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE3338189A1 (de) * 1983-10-20 1985-06-05 Walter Neukirchen Kroll Verfahren zur waermerueckgewinnung aus abwasser mit gleichzeitiger trinkwassereinsparung
CH690108C1 (de) * 1996-05-31 2004-01-30 Rabtherm Ag I G Installation zum Entzug von Waerme aus Abwasser.
DE10062337A1 (de) * 2000-12-14 2002-07-04 Detlef J Zimpel Vorrichtung zum Entsorgen von Abwasser
JP2003027569A (ja) * 2001-07-12 2003-01-29 Katsuto Naza 下水道用ｉｔパイプ
DE202004018084U1 (de) 2004-11-22 2005-02-03 Schulte, Joachim Absorber für ein Rohr- oder Kanalbauwerk sowie Rohr- oder Kanalbauwerk mit einem solchen Absorber
DE102006008379B4 (de) * 2006-02-21 2011-03-31 Henze, Michael, Dipl.-Ing. Rohrsystem zur Abwasserentsorgung und Wärmerückgewinnung
EP2329211B1 (fr) * 2008-09-16 2018-02-07 Tradspe Installation pour extraire de la chaleur d'eau courante

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011138011A2 *

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WO2011138011A3 (fr) 2012-02-23
DE102010019734A1 (de) 2011-11-10

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