• 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 mobile ground heater (which comprises a body in which carries a hose holder Ql with liquid-filled hoses, a heat source QL for heating the liquid, a circulation pump (fi) - for circulating the liquid through the hoses, a first hose connection to a hose connection (for) at least one hose, and a second hose connector LQ having at least one hose connection for receiving liquid from at least one hose. The pump is arranged between the second hose connector and the heat source. The mobile ground heater further comprises a vent aerator, which is arranged between the hose and the pump connection , and | an expansion vessel 111), which is connected to the deaerator and which is located higher than the deaerator. In Publication figure: Figlg
    公开号:SE1450015A1
    申请号:SE1450015
    申请日:2014-01-09
    公开日:2015-07-10
    发明作者:Lennart Siljeström
    申请人:Flexi Heater Sverige Ab；
    IPC主号:
    专利说明:

    15 20 25 30 expansion vessels, which are connected to the deaerator and which are located higher than the deaerator. Due to the arrangement with the deaerator and the expansion vessel, the liquid tank included in the mobile ground heater described in EP 1777349 has been completely removed.
    According to an embodiment of the mobile ground heater, it comprises a heat trap which is arranged between the deaerator and the expansion vessel and which is arranged to reduce heat transfer from the deaerator to the expansion vessel. The heat trap provides a lower temperature of the liquid in the expansion vessel by limiting the heat transfer from the deaerator to the expansion vessel.
    According to an embodiment of the mobile ground heater, a pipeline connects the deaerator to the expansion vessel and the heat trap comprises a first portion and a second portion of the pipeline, the first portion being located higher than the second portion, and the first portion being located between the vent and the other party. In this way, a heat circulation is inhibited that can otherwise occur in the pipeline, even though it is simple and has no loop.
    According to an embodiment of the mobile ground heater, the deaerator comprises a deaeration valve at its upper end, and the expansion vessel is connected to the deaeration valve.
    In accordance with an embodiment of the mobile ground heater, it comprises a filling vessel connected to the expansion vessel for filling liquid.
    According to an embodiment of the mobile ground heater, the first hose connector is connected to the second hose connector via a valve. It is thereby possible to heat and circulate the liquid inside the ground heater without connecting any hose, which is an advantage for certain other possible uses.
    According to an embodiment of the mobile ground heater, it comprises a heat exchanger, which has a primary side which is connected between the heat source and the first hose connector, and a secondary system which is connected to a secondary side of the heat exchanger and which comprises an outlet outlet connected to the heat exchanger. , a deaerator connected to the inlet connection, a pump connected between the deaerator and the heat exchanger, and an expansion vessel connected to the deaerator. This is an application in addition to circulating heated liquid through one or more hoses and can, for example, be used for various other heating purposes such as heating a room via its ordinary heating system.
    BRIEF DESCRIPTION OF THE DRAWINGS Below, embodiments of the mobile ground heater will be described with reference to the accompanying drawing, in which: Fig. 1 shows a block diagram of an embodiment of the mobile ground heater; Fig. 2 is a schematic side view of the embodiment of Fig. 1; Fig. 3 shows a part of the ground heater in fig. 2 closer; and Fig. 4 shows a block diagram of another embodiment of the mobile ground heater.
    DESCRIPTION OF EMBODIMENTS In a first embodiment of the mobile ground heater 1, shown in Figs. 1 and 2, it comprises a system for heating and circulating a liquid, such as water with antifreeze in and means for transferring the heat to an environment, in particular a land area. More specifically, the mobile ground heater 1 comprises a hose holder 2 with at least one liquid-filled hose, which is only shown completely schematically at the reference numeral 11 in Fig. 1, a heat source 3 for heating the liquid, a circulation pump 4 for circulating the liquid through the hose / hoses 14, a first hose connector 5 with at least one hose connection for discharging heated liquid to at least one hose, and a second hose connector 6 with at least one hose connection for receiving liquid from at least one hose. Preferably, each hose connector 5, 6 comprises your hose connections and several hoses are available from the hose holder 2. Interconnectable hose segments are also conceivable as described in EP 1777349. In this embodiment the heat source is a fuel-powered boiler, such as a diesel boiler. fuel tank 7, but other heat sources are conceivable, such as solid fuel boilers, and more. The various parts are supported by a frame 8, of which only one lower part is shown here for the sake of clarity. It is obvious to a person skilled in the art how the frame 8 is to be made with reference to the prior art. It is also obvious to the person skilled in the art, without it being explicitly shown, that the above-mentioned parts are enclosed in a cover for weather protection and are placed on a trailer in order to be able to be transported, completely in accordance with the prior art. The hose holder 2 is a rotatable hose drum, but other variants are also conceivable.
    A pipeline system 9 runs in a loop between the hose connectors 5, 6, and the other components are arranged along the loop. The liquid in the pipeline system has a direction of rotation from the second hose connector 6 towards the first hose connector 5, as shown by arrows in the figures. The pump 4 is arranged before the heat source 3 seen in the direction of rotation, i.e. between the second hose connector 6 and the heat source 3. The mobile ground heater 1 further comprises a deaerator 10, which is arranged before the pump 4, i.e. between the second hose connector 6 and the pump 4, and a expansion vessel 11, i.e. a partially liquid-filled and partially air-filled vessel which allows volume changes in the liquid system, which is connected to the deaerator 10 and which is located higher than the deaerator 10. Furthermore, the ground heater 1 has a filling vessel 12 with a pressure relief valve 13 for easy filling of liquid. The filling vessel 12 is not in principle necessary, it is also possible to fill directly in the expansion vessel, which incidentally also has a pressure relief valve, but in the realized embodiment the filling vessel 12 has been introduced for practical reasons.
    The ground heater 1 generally works as follows. The liquid is pumped around in the pipeline system 9 and the hoses 14 by the pump 4, the pump pushing the liquid through the heat source 3 where it is heated. The heated liquid then continues to the first hose connector 5 and further out into one or more connected hoses 14. The hoses 14 have been laid out over a ground area to be heated, usually for tent thawing, ie to thaw frozen ground, but sometimes unfrozen ground is heated. The cooled return water passes back to the pipeline system 9 via the second hose connector 6 and then passes the deaerator 10 and then arrives again at the pump 4. In the deaerator 10 any air bubbles are separated from the liquid and leave the deaerator via a deaeration valve 15 at its upper end , see Fig. 3, which is open during normal operation. The air passes through a liquid-filled pipeline 16 up to the expansion vessel 11. The pipeline 16 to the expansion vessel is provided with a heat trap 17, which constitutes a first portion 18 and a second portion 19 of the pipeline 16, the first portion 18 being located higher than the second portion 19, and wherein the first portion 18 is located between the vent 10 and the second portion 19. If the pipeline were to go straight up to the expansion vessel 11, there would be a convection in the liquid which would lead to a greater heating of the liquid in the expansion vessel 11 than with the heat trap 17, since the return liquid often maintains a relatively high temperature even if it is significantly lower than that of the liquid flowing out into the hoses. It is desirable, although not necessary, to limit the heating of the liquid in the expansion vessel 1 1. Thanks to the combination of the deaerator 10 and the expansion vessel 11, which are arranged on the suction side of the pump 4, the liquid container of considerable volume included in the construction described in EP 1777349. The liquid is pushed by the pump 4 into the heat source 3 and then directly on to the first hose connector 5 and further out in the hoses 11. It should be noted that there is no circulation of the liquid through the expansion vessel 11, but it is connected to the vent via a separate simple pipeline 16, which is not included in the loop formed by the pipeline system 9 but forms a branch from the pipeline system 9 with end stop.
    In addition to ground heating, the hoses 11 can also be used for other purposes, such as air heating, etc. either directly or via connected devices, such as a radiator.
    A second embodiment of the mobile ground heater 20, shown in a block diagram in Fig. 4, comprises the same components as the first embodiment but also comprises a secondary system 21 for heat exchange to an external heating system. This embodiment of the mobile ground heater 20 is thus also adapted for, for example, heating a room by providing a heating system in the room with a hot medium via the secondary system 21. More specifically, the ground heater 2 comprises a heat exchanger 22, which has a primary side 23 which is connected between the heat source 3 and the first hose connector 5, and a secondary side 24, which is connected to the secondary system 21.
    The secondary system 21 comprises an outlet connection 25 connected to the heat exchanger 22, an inlet connection 26, a vent 27, which is connected to the inlet connection 26, a pump 28, which is connected between the vent 27 and the heat exchanger 22, and an expansion vessel 29, which is connected to the deaerator 27.
    Furthermore, the ground heater 20 comprises a shortcut valve 30, which when opened connects the first hose connector 5 directly to the second hose connector 6. Thus, no hose 11 is connected in this case. The heated liquid passing through the primary side 23 of the heat exchanger 22 thus heats the heating medium in the secondary system 21 as it passes through the secondary side 24 of the heat exchanger 22. The heat in the heating medium of the secondary system 21 is then used in the external system connected to the outlet connection 25 and inlet 26. .
    Embodiments of the invention have been described above. These are to be considered as non-limiting examples only and it will be apparent to those skilled in the art that modifications are possible within the scope of the invention as defined in the appended claims.
    权利要求:
    Claims (9)
    [1]
    A mobile ground heater comprising a body carrying a hose holder with liquid-filled hoses, a heat source for heating the liquid, a circulation pump for circulating the liquid through the hoses, a first hose connector with at least one hose connection for discharging heated liquid to and at least one second hose connector having at least one hose connection for receiving liquid from at least one hose, characterized in that the pump is arranged between the second hose connector and the heat source, and that the mobile ground heater further comprises a vent, which is arranged between the second hose connection and the pump connector, and an expansion vessel, which is connected to the deaerator and which is located higher than the deaerator.
    [2]
    The mobile ground heater of claim 1, further comprising a heat trap disposed between the deaerator and the expansion vessel and adapted to reduce heat transfer from the deaerator to the expansion vessel.
    [3]
    A mobile ground heater according to claim 2, wherein a pipeline connects the vent to the expansion vessel and wherein the heat trap comprises a first portion and a second portion of the pipeline, the first portion being located higher than the second portion, and wherein the first portion is located between the vent and the other party.
    [4]
    A mobile ground heater according to any one of the preceding claims, wherein the deaerator comprises a deaeration valve at its upper end, to which deaeration valve the expansion vessel is connected.
    [5]
    A mobile ground heater according to any one of the preceding claims, further comprising a filling vessel connected to the expansion vessel for filling liquid.
    [6]
    A mobile ground heater according to claim 5, wherein at least one of the filling vessel and the expansion vessel comprises a pressure relief valve.
    [7]
    A mobile ground heater according to any one of the preceding claims, wherein the first hose connector is connected to the second hose connector via a valve. 10
    [8]
    The mobile ground heater of claim 7, further comprising a heat exchanger having a primary side connected between the heat source and the first hose connector.
    [9]
    A mobile ground heater according to claim 8, further comprising a secondary system connected to a secondary side of the heat exchanger and comprising an outlet connection connected to the heat exchanger, an inlet connection, a deaerator connected to the inlet connection, a pump connected to the heater and the heater. and an expansion vessel connected to the deaerator.
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    同族专利:
    公开号 | 公开日
    SE537816C2|2015-10-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1450015A|SE537816C2|2014-01-09|2014-01-09|Mobile ground heater|SE1450015A| SE537816C2|2014-01-09|2014-01-09|Mobile ground heater|
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