• 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:
    16 ABSTRACT A system for ventilating at least one room in a building, comprising a first re-generative heat exchanger unit (10, 10a) and a second regenerative heatexchanger unit (10, 10b), wherein the heat exchanger units, respectively,comprises a thermal storage medium (11) and an air moving device (12) forintermittently providing, in a first direction, an exhaust airflow (13) from the atleast one room to an air supply through the thermal storage medium (11),and intermittently providing, in an opposite second direction, a supply airflow(14) from the air supply to the at least one room through the thermal storagemedium (11). The heat exchanger units, respectively, comprises an electron-ic airflow control device (15) for controlling direction of the airflow, the airflowcontrol devices (15) being connected to a wireless network for coordinatingthe operation of the first and second regenerative heat exchanger units.
    公开号:SE1450528A1
    申请号:SE1450528
    申请日:2014-05-05
    公开日:2015-11-06
    发明作者:Mattias Svensson；Karl-Henrik Nilsson
    申请人:Smartvent Sverige Ab；
    IPC主号:
    专利说明:

    2 period or cycle is the time from which the outgoing air flow enters the matrix in a first direction until the incoming air flow leaves the matrix in the opposite direction. Thus, the incoming air flow and the outgoing air flow are moved alternately through the matrix.
    There are prior art ventilation systems that include a first regenerative heat exchanger unit and a second regenerative heat exchanger unit to ventilate rooms in buildings and recover energy, e.g. from the outgoing air.
    A problem with systems for ventilation of buildings according to known technology is that they are complicated to install.
    Another problem with such prior art systems is that the placement of the regenerative heat exchanger units in relation to each other and in relation to the building in which they are installed is severely limited.
    A disadvantage of such prior art systems is that they result in costly and inefficient installation, operation and maintenance.
    Another disadvantage of such systems of known technology is that the ventilation can become inefficient.
    SUMMARY OF THE INVENTION An object of the present invention is to avoid the disadvantages and problems of the prior art. The system and method according to the invention result in simple and efficient installation and an operation, which results in efficient and reliable ventilation.
    The present invention relates to a system for ventilating at least one room in a building, comprising a first regenerative heat exchanger unit and a second regenerative heat exchanger unit, the first and second regenerative heat exchanger units, respectively, comprising a heat storage medium and an air transfer device for periodically providing a air flow in a first direction from the room to an air source through the heat storage medium, and to periodically provide an incoming air flow in an opposite second direction from the air source to the room through the heat storage medium, characterized in that the first and second regenerative heat the exchange unit, comprises an electric air flow control device for controlling a direction of the air flow, and that the air flow control devices are connected to a wireless network to coordinate the operation of the first and second regenerative heat exchanger units. Thus, several regenerative heat exchanger units with fixed matrix can be connected in a wireless network to control the operation thereof, whereby the direction of the air, and if desired also e.g. an amount of air flow per unit time, can be remotely controlled in a simple and reliable manner. Furthermore, the invention also makes it possible to remotely monitor and control the status and operation of several regenerative heat exchanger units with a fixed matrix. According to the invention, it is thus possible to wirelessly synchronize or coordinate, collect information from and control the regenerative heat exchanger units and thereby the ventilation of a dwelling or at least one room thereof. For example, the regenerative heat exchanger units can be programmed to work together in such a way that improved distribution of fresh air is achieved. With reference to the number of rooms and their location, there are possibilities for an asymmetric system, where not all units change at about the same time. This means that a unit can switch with a phase shift of e.g. 1A of a period, a period being a complete operating cycle of the system from the start of an outgoing air flow of a regenerative heat exchanger unit to the end of an incoming air flow of the same regenerative heat exchanger unit. Furthermore, a total net air flow can be achieved according to a programmed predetermined value. The predetermined value can be set down to zero as needed (fluid entering the space minus the fluid exiting the space is equal to zero).
    The system may comprise a remote user interface device, such as a smartphone or a computer for monitoring and / or controlling the operation of the regenerative heat exchanger units. Thus, the ventilation in a home can easily be monitored and controlled remotely. The wireless network can be a local area network, e.g. connection with the Internet. The system may comprise a plurality of sets of regenerative heat exchanger units, each set being designed to ventilate separate dwellings, each set being monitored and controlled by the user interface device, e.g. through the Internet, a mobile network or the like.
    Thus, the ventilation in different dwellings in the same building or different buildings can be remotely monitored and remotely controlled through a single common user interface.
    The present invention also relates to a method for ventilating at least one room in a building, comprising the steps of a) by means of an air transfer device of a first regenerative heat exchanger unit controlling an outgoing air flow from the room to an air source through a heat storage medium of the regenerative heat exchanger unit, b) by means of an air transfer device of a second regenerative heat exchanger unit control an incoming air flow from the air source to the room through a heat storage medium of the regenerative heat exchanger unit, c) change the direction of air flow of the first and second regenerative heat exchanger connecting electrical airflow control devices of the first and second regenerative heat exchangers to a wireless network, and e) coordinating the operation of the first and second regenerative heat exchangers through the wireless network.
    The invention solves problems with synchronization or coordination of incoming and outgoing air flows, facilitates installation and improves control. In addition, the invention enables remote monitoring and remote control of the regenerative heat exchanger units with a fixed matrix, the ventilation being remotely controlled, which e.g. involves monitoring / receiving warning messages if regenerative heat exchanger units are out of order or to increase / decrease the air flow depending on the situation without being on site. For owners and caretakers of premises with several apartments, this function is lacking and would enable full control of energy recovery, air quality, costs and planning of maintenance, logistics and resources. For example, the regenerative heat exchanger units are decentralized units.
    Further features and advantages of the present invention will become apparent from the description of exemplary embodiments below, the accompanying figures and the dependent claims.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with the aid of exemplary embodiments with reference to the accompanying drawings, in which Fig. 11a is a schematic perspective view showing the operation of a regenerative heat exchanger unit, with an outgoing air flow in a first direction and heat energy in the outgoing air flow is recovered by means of a heat storage medium in a first part of a work cycle comprising two parts, Fig. 1b is a schematic view according to Fig. 1a, in which the incoming air flow is carried in a second direction and heated with the heat storage medium in a second and final part of the working cycle, Fig. 2a is a schematic perspective view from above of a system for ventilation of one or more rooms, a plurality of regenerative heat exchanger units comprising air flow control devices connected to a wireless network for coordinating the operation of the regenerative heat exchanger units, and the operation during a first part of a work cycle with four parts Fig. 2b is a schematic view according to Fig. 2a, showing the operation during a second part of the work cycle, Fig. 2c is a schematic view according to Fig. 2a, showing the operation during a third part of the work cycle, Fig. 2d is a schematic view according to Fig. 2a, showing the operation during a fourth and final part of the work cycle, Fig. 3 is a schematic illustration of a system for ventilation of one or more rooms, wherein a plurality of regenerative heat exchanger units comprise with a wireless network interconnected airflow controllers and remote user interface devices for monitoring and / or controlling the operation of the regenerative heat exchanger units, and Fig. 4 is a diagram of a plurality of sets of regenerative heat exchanger units connected to a common user interface network.
    THE INVENTION Referring to Fig. 1a and Fig. 1b, a regenerative heat exchanger unit 10 is shown schematically for ventilating a building or at least one room in a building. The regenerative heat exchanger unit 10 is, for example, arranged for ventilation of a dwelling. The regenerative heat exchanger unit 10 comprises a heat storage medium 11 and an air transfer device 12, such as one or more fans or the like, to provide an air flow through the heat storage medium 11. In the embodiment shown, the heat storage medium 11 is a fixed matrix materials and continuous pipes for the air flow. For example, the heat storage medium 11 comprises a ceramic material. The heat storage medium 11 is arranged for recovering heat from hot air, whereby heat energy from the hot air is transferred to the heat storage medium 11. Then, when cold air is transported through the heat storage medium 11, heat is transferred to the cold air flow, which heated up.
    Correspondingly, the heat storage medium 11 can be used to cool an air flow.
    Referring to Fig. 1a and Fig. 1b, the air flow through the regenerative heat exchanger unit 10 is shown by means of an arrow, the striped part representing hot air and the single-colored part representing cold air.
    In the example shown in Fig. 1a, the air transfer device 12 provides an outgoing air flow 13 from the room to an air source. Heat from the outgoing air flow 13 is transported out of the building which comprises one or more rooms and on to the air source in a first direction by means of the air transfer device 12. The air source is for example air outside the building, such as surrounding outdoor air, or from another space that contains fresh air. Heat from the outgoing air flow 13 is recovered by the heat storage medium 11. Then, after a period of time or based on another parameter, the air transfer device 12 changes direction to provide an air flow 14 of fresh air from the air source to one or more of the rooms in the building. As shown in Fig. 1b, the incoming air flow 14 is heated as it passes the heat storage medium 11. Thus, the air transfer device 12 moves air intermittently, i.e. periodically and repeatedly, in the first direction and the second direction to provide the outgoing air flow 13 and the incoming air flow 14, the air flow going back and forth through the regenerative heat exchanger unit 10. The outgoing air flow 13 and the incoming air flow 14 are brought into abutment against the heat storage medium 11 by alternately passing them through the heat storage medium in a recurring cycle. Thus, a single air flow is passed through the heat storage medium 11 in a cyclically reversible flow. A period or cycle is the time from which the outgoing air flow 13 enters the heat storage medium 11 in the first direction and until the incoming air flow 14 leaves the heat storage medium in the opposite direction. Thus, the incoming air flow 14 and the outgoing air flow 13 are alternately passed through the heat storage medium 11. For example, the outgoing air flow 13 is directed exclusively through the heat storage medium 11 in the first direction during a first part of the cycle, the incoming air flow exclusively directed through the heat storage medium 11 in the other direction during a second part of the cycle. The heat exchanger 11 is, for example, a generative heat exchanger with a fixed matrix with continuous channels for the air flow. For example, the air is moved back and forth through the same channels in the heat exchanger 11, so that the hot outgoing air flow is transported through the channels in the first direction during the first part of the cycle and the cold incoming air flow is transported through the same channels in the opposite second direction during the second part of the cycle. .
    With reference to Figs. 2a-2d, a system for ventilation of one or more rooms in a building is shown according to an exemplary embodiment. The system comprises a plurality of regenerative heat exchanger units 10. The regenerative heat exchanger units 10 are, for example, remotely located relative to each other, such as in different and spaced parts of one or more rooms or a dwelling. In the embodiment shown in Figs. 2a-2d, the system comprises a first regenerative heat exchanger unit 10a, a second regenerative heat exchanger unit 10b and a third regenerative heat exchanger unit 10c. Alternatively, the system comprises at least two or more regenerative heat exchanger units 10. According to one embodiment, the respective regenerative heat exchanger unit 10 has the capacity to produce an air flow of at least 0.3 l / s per m2 or at least 0.35 l / s per m2. The regenerative heat exchanger units 10a-10c comprise the heat storage medium 11 and the air transfer device 12 as described above.
    According to the invention, each of the regenerative heat exchanger units 10a-10c comprises an electric air flow control device 15 for controlling the direction of the air flow, e.g. by controlling a fan rotation direction of the air displacement device 12. Optionally, the air flow control device 15 is also arranged to control the amount of air per unit time of the air flow, e.g. by controlling the fan speed of the air transfer device 12. The air flow control devices 15 are connected to a wireless network to coordinate the operation of the regenerative heat exchanger units 10a-10c. Two or more regenerative heat exchanger units 10a-1 Oc for ventilation of buildings are thus arranged to communicate with each other wirelessly in a wireless network. For example, the regenerative heat exchanger units 10a-1 Oc can be programmed and the direction and amount of air flow can be set according to the use. For example, the regenerative heat exchanger units 10a-10c can be arranged to work together according to a predetermined program in such a way that the direction and amount of air flow are synchronized or coordinated with a phase shift, ie. that one or more of the regenerative heat exchanger units 10a-10c change direction with a delay relative to the remaining regenerative heat exchanger units 10a-10c. For a system comprising only two regenerative heat exchanger units 10, the air flow control devices are for instance arranged for wireless synchronization of the outgoing air flow 13 and the incoming air flow 14 of the two regenerative heat exchanger units 10, optionally with a smaller time delay, with using the wireless network. Referring to the exemplary embodiment in Figs. 2a-2d, a duty cycle of the system is described. In Figs. 2a-2d, the work cycle comprises four parts, the operation during a first part being shown in Figs. 2a. Figure 2a shows an example where three regenerative heat exchanger units 10a-10c work together in a specific example of flow chart to bring air into and out of a space, such as one or more rooms in a building. At the beginning of the cycle, the first regenerative heat exchanger unit 10a moves air into the space, the second and third regenerative heat exchanger units 10b, 10c moving air out of the space.
    Thus, the first regenerative heat exchanger unit 10a provides the incoming air flow 14 while the second and third regenerative heat exchanger units 10b, 10c provide outgoing air flows 13. Fig. 2a shows a first part of the cycle, i.e. of 1/4.
    Thereafter, after a preset time period, the airflow control devices 15 of the regenerative heat exchanger units 10a-c communicate via the wireless network to change airflow directions, for example as shown in Fig. 2b. In Fig. 2b, the air flow direction of the second regenerative heat exchanger unit 10b has been changed, the operation of the first and third regenerative heat exchanger units 10a, 10c continuing as before. Thus, the second regenerative heat exchanger unit 10b is switched from providing an outgoing air flow 13 to providing an incoming air flow 14. Fig. 2b shows a second part of the cycle, i.e. of 2/4.
    Thereafter, after another preset time period, the airflow control devices 15 of the regenerative heat exchanger units 10a-c communicate via the wireless network to change airflow directions, for example as shown in Fig. 2c. In Fig. 2c, the air flow direction of the second regenerative heat exchanger unit 10b is maintained as before, the air flow direction of the first and third regenerative heat exchanger units 10a, 10c having been changed.
    Thus, the first regenerative heat exchanger unit 10a is switched from providing an incoming air flow 14 to providing an outgoing air flow 13, the third regenerative heat exchanger unit 10c being switched from providing an outgoing air flow 13 to providing an incoming air flow 14. FIG. 2c shows a third part of the cycle, i.e. of 3/4.
    Thereafter, after another preset time period, the airflow control devices 15 of the regenerative heat exchanger units 10a-c communicate via the wireless network to change airflow directions, for example as shown in Fig. 2d. In Fig. 2d, the air flow direction of the second regenerative heat exchanger unit 10b has been changed, the operation of the first and third regenerative heat exchanger units 10a, 10c continuing as before. Thus, the second regenerative heat exchanger unit 10b is switched from providing an incoming air flow 14 to providing an outgoing air flow 13. Fig. 2d shows a fourth and last part of the cycle, i.e. of 4/4. Then a new cycle is started, as shown in Fig. 2a.
    In the embodiment shown, the second regenerative heat exchanger unit 10b operates with a phase shift relative to the first and second regenerative heat exchanger units 10a, 10c, the second regenerative heat exchanger unit 10b changing direction with a time shift relative to the first and third regenerative heat exchanger unit 10a, 10c. For example, all bicycle parts are equal in time. According to one embodiment, the second regenerative heat exchanger unit 10b changes direction between the shifts of the first and third regenerative heat exchanger units 10a, 10c. For example, one or more of the regenerative heat exchanger units 10 changes air direction in the middle of the outgoing air period or the period of incoming air flow of one or more of the second regenerative heat exchanger units 10. The first and third regenerative heat exchanger units 10a, 10c are, for example, synchronized or operated with a small delay relative to each other, e.g. a few seconds, such as 2-10 seconds, to minimize noise.
    In the example shown in Figs. 2a-2d, three regenerative heat exchanger units 10a-1 Oc work together to achieve good distribution of air and to equalize incoming and outgoing air flows 13, 14. In the example, the first and third regenerative heat exchanger units 10a operate , 10c in an exact opposite ratio, the second regenerative heat exchanger unit 10b changing direction with a fixed phase shift towards the other two. This means that the second regenerative heat exchanger unit 10b switches at a certain time between the beginning and the end of the period in each cycle. For example, when one or more regenerative heat exchanger units 10 move a certain amount of air into the space, another regenerative heat exchanger unit or other regenerative heat exchanger units move approximately the same amount of air out of the space. This normally means that the net air flow for all regenerative heat exchanger units 10 is equal to zero. At the same time, there is the possibility of setting a net air flow between the different air flows that deviate from zero if it is required that a certain amount of air enters or leaves the space outside the regenerative heat exchanger units 10.
    Referring to Fig. 3, another example is shown. According to the embodiment shown in Fig. 3, a remote user interface device 16, such as a mobile telephone 16a, a computer 16b or the like, is connected to the wireless network, access to the regenerative heat exchanger units 10 being allowed via the wireless network and the air flow control devices 15. of the regenerative heat exchanger units 10. For example, the remotely connected user interface device 16 is a smartphone. After being connected to the wireless network, such as a wireless local area network, communication between the remote user interface device 16 and the regenerative heat exchanger units 10 can be established via the wireless local area network, e.g. through a network access point 17, such as a conventional router or the like. For example, Internet access may also be available, whereby communication between the remotely connected user interface device 16 and the regenerative heat exchanger units 10 can be established via the Internet. Thus, the operation of the regenerative heat exchanger units can be monitored, controlled and controlled from the remote user interface device 16. The wireless communication network can be used together with built-in sensors in the regenerative heat exchanger units 10 and individual or joint access to the Internet (eg mobile connection / LAN) to perform measurements, monitor key values and control (change settings) of individual regenerative heat exchanger units 10 from remote locations. For example, the incoming air flow 14 and the outgoing air flow 13 can be monitored and controlled with respect to the direction of the air flow, amount of air per unit time, temperature. Air quality (oxygen content, humidity, etc.) can also be monitored and the operation adjusted accordingly. According to one embodiment, the ventilation is monitored and controlled by a smartphone application or other type of suitable software. For example, the ventilation can be controlled by entering the number of people who are usually in the ventilated rooms or if no one is in the rooms at the moment or during special times, whereby the air flow can be reduced, e.g. down to 0.1 l / s per m2. Furthermore, in the event that more people than usual are temporarily in the ventilated rooms, this can be fed into the system and the ventilation adjusted accordingly. Other parameters, such as if there is a fireplace, can also be fed into the system and the ventilation adapted accordingly.
    Furthermore, a plurality of sets of regenerative heat exchanger units 10, each set comprising a plurality of regenerative heat exchanger units 10 for ventilating a space or at least one room in a building, can be connected to a wireless network via the air flow control devices 15, as shown in Figs. 4. In Fig. 4, the regenerative heat exchanger units have been shortened to units. The arrays of regenerative heat exchanger units 10 may be in the same or different buildings, such as any buildings remotely located relative to each other. For example, the sets of regenerative heat exchanger units 10 are connected to the remotely connected user interface device 15 for monitoring and controlling settings of individual regenerative heat exchanger units 10 as well as individual sets of regenerative heat exchanger units 10. Thus, the commonly connected interconnected interface is sets of regenerative heat exchanger units 10. The setting can be adapted for each set of regenerative heat exchanger units 10, whereby the ventilation can be adapted individually for different dwellings or rooms. Fig. 4 shows a network hierarchy for remote monitoring and remote setting of settings of the regenerative heat exchanger units 10. Fig. 4 shows k number of networks (network 1 has n number of units, network 2 has m number of units and network k has I number of units ), where k, n, m and I are arbitrary integers.
    权利要求:
    Claims (12)
    [1] 1. A system for ventilating at least one room in a building, comprising a first regenerative heat exchanger unit (10, 10a) and a second regenerative heat exchanger unit (10, 10b), wherein the first and second regenerative heat ex- changer units (10, 10a, 10b), respectively, comprises a thermal storage me- dium (11) and an air moving device (12) for intermittently providing, in a first direction, an exhaust airflow (13) from the at least one room to an air supply through the thermal storage medium (11), and intermittently providing, in an opposite second direction, a supply airflow (14) from the air supply to the at least one room through the thermal storage medium (11), characterised in that the first and second regenerative heat exchanger units (10, 10a, 10b),respectively, comprises an electronic airflow control device (15) forcontrolling direction of the airflow (13, 14), that the airflow control devices (15) are connected to a wireless network forcoordinating the operation of the first and second regenerative heatexchanger units (10, 10a, 10b).
    [2] 2. A system according to claim 1, wherein the airflow control device (15) ofthe second regenerative heat exchanger unit (10, 10b) is programmed to shiftthe airflow direction through the second regenerative heat exchanger unit(10, 10b) at a time delay in relation to the first regenerative heat exchangerunit (10, 10a).
    [3] 3. A system according to claim 2, wherein the system comprises a third re-generative heat exchanger unit (10, 10c) provided with an airflow control de-vice (15) connected to the wireless network.
    [4] 4. A system according to any of the preceding claims, including a remoteuser interface device (16), wherein the wireless network is accessible by theremote user interface device (16) for monitoring and/or controlling the opera- tion of the regenerative heat exchanger units (10, 10a-c). 14
    [5] 5. A system according to claim 4, including a plurality of sets of regenerativeheat exchanger units (10), each set being arranged for ventilating separatedwellings, wherein each set is monitored and controllable through the userinterface device (16).
    [6] 6. A system according to claim 4 or 5, wherein the regenerative heat ex-changer units (10) comprise temperature sensors and/or airflow sensorsconnected to the wireless network.
    [7] 7. A system according to any of the preceding claims, wherein the airflowcontrol devices (15) are arranged for controlling an amount of air per unit oftime of the airflow.
    [8] 8. A method for ventilating at least one room in a building, comprising thesteps of a) by means of an air moving device (12) of a first regenerative heat ex-changer unit (10, 10a) directing an exhaust airflow (13) from the at least oneroom to an air supply through a thermal storage medium (1 1) of the regener-ative heat exchanger unit (10, 10a), b) by means of an air moving device (12) of a second regenerative heat ex-changer unit (10, 10b) directing a supply airflow (14) from the air supply tothe at least one room through a thermal storage medium (1 1) of the regener-ative heat exchanger unit (10, 10b), c) shifting airflow direction of the first and second regenerative heat ex-changer units (10, 10a, 10b), d) connecting electronic airflow control devices (15) of the first and secondregenerative heat exchanger units (10, 10a, 10b) to a wireless network, ande) coordinating the operation of the first and second regenerative heat ex-changer units (10, 10a, 10b) through the wireless network.
    [9] 9. A method according to claim 8, comprising the step of shifting the airflowdirection through the second regenerative heat exchanger unit (10, 10b) at atime delay in relation to the first regenerative heat exchanger unit (10, 10b).
    [10] 10. A method according to claim 8 or 9, comprising the steps of directing anairflow (13, 14) through a third regenerative heat exchanger unit (10, 10c)and contro|ing the operation of the third regenerative heat exchanger unit(10, 10c) by means of an airflow control device (15) of the third regenerative heat exchanger unit (10, 10c) connected to the wireless network.
    [11] 11. A method according to any of claims 8 to 10, comprising the step ofmonitoring and/or contro|ing the operation of the regenerative heat exchang-er units (10, 10a-c) by a remote user interface device (16) connected to the wireless network.
    [12] 12. A method according to any of claims 8 to 11, comprising the steps ofconnecting a p|ura|ity of sets of regenerative heat exchanger units (10) to thewireless network, each set venti|ating separate dwe|ings, and monitoringand/or contro|ing each set through a remote user interface device (16).
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    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1450528A|SE540444C2|2014-05-05|2014-05-05|System and method for ventilating at least one room in a building|SE1450528A| SE540444C2|2014-05-05|2014-05-05|System and method for ventilating at least one room in a building|
    PCT/SE2015/050483| WO2015171051A2|2014-05-05|2015-04-30|A system and method for ventilating at least one room in a building|
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