ES1136008U - Installation of water to prevent the proliferation of living beings in water conductions (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Installation of water to prevent the proliferation of living beings in the water pipes of buildings, of the type comprising at least: - a general water connection (10), - a hot water recirculation pipe (20) that starts from the general connection (10), which starts and ends before a heat source (40) to heat the water coming from the general connection (10) and which has a recirculation pump (50) downstream of the heat source (40) and before the hot water pipe (20) connects again with the general supply (10), - at least one cold water pipe (30) that starts from the general connection (10), - at least one branch of hot water (21, 21 ') starting from a bypass of the hot water pipe (20) and at least one branch of cold water (31, 31') that starts from a branch of the pipeline of cold water (30), ending each pair formed by a branch of hot water and another branch of cold water (21-31, 21'-31 ') in a tap (60, 60'), and characterized in that it comprises a recirculation device (70) located in at least one branch of hot water (21, 21 ') upstream of the tap (60, 60') connecting said at least one branch of hot water (21, 21 '). ), first branch, with another branch (31, 31 ', 22, 22'), second branch, comprising: - a pump (74) for the recirculation of water installed in a bypass line (75) between the line section for hot (71) and cold (72) water. - at least first means of regulating the water flow (76) located in the bypass line (75) on one side of the pump (74), allowing or not the passage of water to the pump. - at least a second means of regulating the water flow (76b) also located in the bypass line (75) where the first flow control means (76) are located, and - a control system (18) connected at least to said first water flow regulation means (76) and to the pump (74). - at least one first temperature measuring means (77) disposed between the connection to the branch pipes (21, 31) and the bypass conduit (75), upstream of said bypass conduit (75), connected to the control system (18). - electronic activation means of the pump, connected to the control system, which activate or start the pump, and - electronic means of deactivation of the pump, connected to the control system, which deactivate or stop the pump. (Machine-translation by Google Translate, not legally binding)

Description

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WATER INSTALLATION TO PREVENT THE PROLIFERATION OF LIVING BEINGS IN WATER DRIVING

DESCRIPTION 5 OBJECT OF THE INVENTION

The invention, installation of water to prevent the proliferation of living beings in the water pipes of buildings, refers to an installation with a device applicable to faucets with hot and cold water supply, whose purpose is to improve the health of public buildings and private with hot water recirculation facilities, or without

10 it, preferably hotels, hospitals and houses or homes, by means of recirculation within the installation of cold, warm or hot water. In hot water recirculation facilities there is a high risk of proliferation of living beings such as Legionella, especially in blind branches, where due to lack of water movement, stagnation occurs at

A temperature that is the perfect breeding ground for such living things such as bacteria and other microorganisms. The present invention avoids, among other uses or applications, this stagnation because it incorporates, combined with a temperature sensor, a control system, and a timer and / or programmer to perform a water sweep with the desired periodicity automating the process, avoiding the

20 human intervention, or doing it manually, by means of a push-button, thus avoiding said "permanent zone of bacterial comfort". The device, constituted by a modular element, presents a construction that, among other advantages, facilitates its installation without works, in many cases without modification of pipes, and without the need to put external operating switches to the device, given the danger that these pose in zones

25 wet, thus lowering its installation cost and reliability. The device allows the injection into the installation of water, by recirculating it, both hot water to displace cold water, and the injection of cold water to displace hot water. The invention relating to an installation describes different alternatives and

30 constructions, which contribute to the prevention of water stagnation in pipes and blind branches where the aforementioned living beings proliferate, usually bacteria and microorganisms, and also achieve a thermal shock in the hot and cold water pipes to reduce the colonies of microorganisms that there could be, as well as saving water and energy.

35 The device included in the facilities also allows, by incorporating

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of some additional elements or components, save water in taps, by preventing water and energy from being wasted through the sump before reaching the desired temperature, for which said device seeks automatic recirculation, only with the user opening the hot water tap, coming from the boiler or hot water supply source, until it reaches that temperature, which will have been previously determined, or manually operated to optionally make a treatment of hot and cold water pipes whether or not hot water recirculation.

In the present description the terms "living beings" or "living being" refer to any living being that could be found in hot and cold water pipes, and that could be affected by the treatments described here, and sensitive to shocks thermal, such as microorganisms, bacteria (Legionella), fungi, algae, lichens, amoebas, paramecia, protozoa, viruses or the like.

The field of application of the present invention focuses on the sector dedicated to hot and cold water installations, both domestic, as well as for public places, hotels and hospitals, as well as industrial.

BACKGROUND OF THE INVENTION

In the state of the art the problem of proliferation of living beings is known, among others the commonly known Legionella, in water facilities, mainly in hot water recirculation facilities existing in hotels, hospitals and large houses, but also in homes with Little water renovation. The living beings proliferate mainly in the blind branches where due to the lack of movement of water a stagnation of the same takes place. A blind branch should be understood as anyone who ends up in a tap, usually closed, supplied from a main water line. Such blind branches usually coincide with the bathrooms of the rooms of a hotel or hospital, or large houses, in rooms that can be found for long periods of time without inhabitants so the bathroom or sinks are not used and therefore can be give in said blind branches suitable temperature conditions for the proliferation of living beings, in particular Legionella.

Since the hot water recirculation pipes are usually at a temperature above 50ºC and, however, the comfort temperature in the rooms and bathrooms is close to 20ºC, there is a risk zone (ZR) of intermediate microbiological proliferation where these living beings, usually microorganisms, find a perfect habitat for their development.

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To date, and to combat the proliferation of these living beings, different measures are used: Chemical water treatment, usually by means of sodium hypochlorite, to lower the pH of the water, and / or Overheat the water circuit above 70º so water conditions vary even on blind branches. These measures have as main problems the premature oxidation of the pipes and reduction of their life, whatever their material, metal

or plastic On the irregularities, rust craters and / or microcracks, that the damages of these treatments produce, it is more probable that the living beings take refuge or deposits of sediments take place under which these living beings will find protection in successive attacks.

The present invention makes it possible to combat the proliferation of living beings, such as Legionella and other microorganisms, in blind branches even before Legionella colonies are formed, as an additional measure to known treatments or replacing them without using any type of chemical treatment and without modification in the existing water circuit, allowing water recirculation.

Likewise, a modification of the device object of the invention is also destined to the water saving market and to reduce the risk of freezing of the pipes in cold places, since if the equipment detects that the temperature of the water drops to a temperature in which This fact can occur, recirculation is activated preventing them from freezing, at least in the path that the water makes with this system. In the state of the art there are different solutions to the problem of water saving through various devices, such as thermostatic faucets, flow reducing heads, complex remodeling in water recirculation facilities and even modular devices that share some of the objectives of the modified device object of the present application. Although some of these devices satisfactorily meet the objectives they pursue, they have certain aspects that can be improved, specifically, the simplification of their construction, whereby the present device is developed in which, by changing the position of the flowmeter, The need to incorporate the pressure switch is avoided, making the device more economical and easier to install, but without losing effectiveness.

Thus, when changing the flowmeter or any measuring device

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of pressure or flow placing it inside the water recirculation circuit, instead of after it, the flow is detected at the tap opening and even the recirculation during the process and / or if water stops arriving, to stop the system .

In the state of the art, the proliferation of living beings in pipes and blind branches and, mainly those disposed between the hot water recirculation pipe and the tap feeding branch, is only avoided as said before, by means of overheating of the installation or by applying chemical products to the water of the installation both to be carried out mandatory, every certain period of time. Additionally, it is currently also possible to open the tap of the branch in question and keep it open for a certain time until the water contained in the hot water branch has emptied, and the branch has been refilled with hot water for an additional time and until the water comes out at a temperature that guarantees at least a temperature away from the proliferation temperature of living beings or their cauterization for at least a defined period of time. This last action in buildings with many faucets in different rooms, such as hotels and hospitals, could be done manually and only in the domestic hot water pipes and not in the cold water pipes, with one person accessing all the rooms every period of time and opening the taps, but obviously it is not an optimal solution with guarantees and efficient since the person will waste a lot of time in opening the tap and waiting for the hot water to come out, and also the human failure can cause it to not open A certain branch. This problem is especially important after a period of downtime of the building, especially in hotels or seasonal residences.

EXPLANATION OF THE INVENTION

Thus, the installation to prevent the proliferation of living beings, as well as the stagnation of water, and additionally save water and energy in faucets in addition to reducing the risk of freezing in pipes, is an installation that acts automatically, if nobody has opened a tap during a certain period, by means of a timer that acts to prevent the stagnation of water in the branches of the system where it has been placed, and it can also be activated by simply opening the tap, by means of its conventional opening operation, either the control of a mixer tap or the simple opening of the key of a standard tap, and does not require any action on an external push button or switch or activation of any circuit, when it acts to save water and energy. The installation can also act by means of measuring the

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temperature or sensor, or a timer associated with a temperature sensor in those cases in which the recycling of water from the branch is to be produced until a previously determined temperature is reached. It can also be achieved by activating a button or switch of the equipment that recirculates through the domestic hot water and sanitary cold water pipes, whether or not they have recirculation, for the time necessary for them to cauterize thanks to the heat produced by the boiler or thermos, the microorganisms that in the pipes there may be.

For this, the installation of recirculation of hot water or without it, comprises a device, to improve the health of public and private constructions, among other applications, preventing the proliferation of living beings. This device, formed by a single module, prevents this stagnation and the proliferation of living beings in a certain risk zone (ZR) and in some cases even in cold water pipes, being located in a branch of the water installation preferably formed by a hot water pipe and a cold water pipe that end in a tap. Specifically, said module is disposed between the tap and the two mentioned pipes, the device attached to both the pipes and the tap by connections, and comprising in its interior two sections of line, one preferably of hot water and another preferably of cold water , which are connected through the connections with the hot water pipe and the cold water pipe as well as the corresponding tap connections, and a water recirculation pump, a first means of flow regulation, a temperature sensor and a second flow regulation means all arranged in series in a bypass duct located between the two line sections, as well as a control system connected to the pump and to the first regulation means, said control system comprising a first timer to periodically and automatically activate the pump and the first means of flow regulation, if water has not been demanded d For a set period of time. The device can also be activated by means of the temperature sensor, an on / off button located on the device, and / or the opening and closing of the water tap. The timer allows you to program a periodic water sweep, for example daily or weekly, to avoid the "permanent comfort zone of living beings or risk zone", if no one has used the water for a set period of time. Likewise, in these installations with hot water recirculation it is possible to cancel the recirculation of the hot water recirculation ring, not of the device object of the invention, to avoid that optimum temperature that offers the perfect conditions to create a “breeding ground for beings alive ”, thus reducing the risk of proliferation of

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colonies of living beings, in the blind branches of hot water when moving from a high-risk hot water recirculation system to one of instantaneous production of low-risk hot water.

The control system, associated with the different electrical / electronic components to regulate their operation in particular and of the water recirculation device in general, such as the pump, the regulating means or temperature sensor, the regulating means of flow, the timer and the button among others, allows to generate a control and record of temperatures, cycles and flows. Said control system can be connected to a server, through a communications port, either in a network or wirelessly, in order to be able to track the recorded data as well as to manage the device remotely. Acting remotely on the control system of the device object of the invention, its activation and deactivation is possible from a control center, from a mobile device, from a remote control, etc.

By connecting the control system with a remote server, the management, control and recording of data, mainly of temperature, of the blind pipes, rings and branches (as well as their periodic openings) of an installation in which the device is enabled is possible find installed. Also, the control system can be connected to the heat source, usually a boiler, and contribute to the regulation of the temperature of the heat source to, for example, ensure that the target temperature of the installation is met at all points of the same. For example, if the temperature of the installation at one of its points is less than a certain target temperature, the control system connected to the boiler (with its control system, remotely via a server or direct way), you can instruct the boiler to increase the temperature of the installation, and on the contrary, that is, lower the installation temperature if it is higher than the predetermined target temperature.

This type of remote connection is of special interest to control the temperature of the hot water ring in facilities where it may be mandatory, such as facilities such as hospitals, hotels and residences, among others). In these installations it is necessary to take measurements of the water temperature in different parts of the circuit or installation so that it can be guaranteed that the installation provides water at a certain target temperature. In addition to the measurements, it is usually necessary to periodically empty the blind branches. The previous measurement and emptying actions are necessary for

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be registered By means of the device, it is possible to obtain said temperature registers automatically, as well as emptying the branches.

Therefore, the installation object of the invention comprises a proliferation prevention device for living beings in water installations comprising activation or start-up and deactivation or stop means, associated or connected to the device control system, and which allow the device recirculation pump to be activated and deactivated respectively. Said means of deactivating the pump may be, combined or not:

the temperature measuring means that stops the pump when said temperature measuring means reaches a predetermined target temperature and stored in the control system, and / or

a first timer, connected through the control system, which stops the pump after being activated for a certain period without reaching the predetermined target temperature.

Also, the means for activating the device pump can be:

the temperature measuring means that activates the pump when said temperature measuring means reaches a predetermined target temperature and stored in the control system, and / or

a manual button connected to the control system located on the device itself, and / or

a second timer connected to the control system that operates each determined period of time to periodically and automatically activate the pump, and / or

At least one remote connector connected to the control system through the server.

The device can also be used to recirculate the water, whether it is cold, warm or hot from the hot water pipes to the cold water pipes and then sent to the hot water recirculation ring; to drive cold water Contained inside the hot water pipes to the hot water pipe or to recirculate the cold water from the cold water pipes to the hot water pipes, forcing the warm water to enter the recirculation pipes of hot water, towards the recirculation and its subsequent passage through a boiler where living beings will be cauterized or the water will be heated to prevent freezing. It is also possible that for

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avoid freezing the boiler is not running and the recirculation of water through the pump causes the water to heat up.

In this way, and using only the existing pipes of hot and cold water, or other added return to the recirculation ring, they communicate with each other with a section or bypass conduit in the device and a closed circuit is formed that returns the water, cold or hot to prevent water stagnation, preventing the proliferation of living things, or to prevent the freezing of water in pipes or pipes.

Likewise, by including additional elements or components to the device described above, using said device or module as a device for saving water, recirculating water, hot, warm or cold, depending on its temperature, to the boiler or thermos instead of pouring it into the drain, with the consequent saving of both water and energy. In this case, it is also possible to arrange the components of the device on one or the other side of the pump, even on both, making it possible to save hot, cold water or both. It can also be used to heat water, as well as hot and cold water pipes, if the possibility of freezing is detected.

Therefore, a complementary aspect of the invention is an installation to save water and thermal and electrical energy (by not spilling warm water down the drain, but incorporating it into the supply of the hot water production system, said system must perform a lower thermal jump, since it is fed with water at a higher temperature than that which comes from the supply network, which means savings in heating energy).

This installation comprises a device formed by a compact module that can be installed preferably without the need to modify or add pipes, or external switches, or faucets, or existing boilers or thermos, and without adding accumulators or tanks, although in some cases it is necessary to use them , being directly applicable in installations of hot or hot and cold water, both domestic and local public, as well as industrial, and it is sandwiched only between the hot and cold water inlets or water inlets to the sink, sink , battery, shower or bidet and its corresponding faucet, all the elements of the device being incorporated in a module that is installed next to said faucet and only one device is sufficient to supply hot water

or cold without spilling water or energy until it arrives hot or cold, to all the taps of the

bathroom. Thus, the request for hot or cold water from the tap that has the aforementioned installed

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module, conditions the water for the rest of the faucets of that nearby environment.

Specifically, by means of a system with means for regulating the flow of water, valves or solenoid valves, temperature and flow or pressure sensors, together with a pump, included in the module, it is possible to derive the circulation of the water not yet heated to the pipe of cold water, although in the opposite direction, that is, towards its re-entry into the heating apparatus originally provided in the installation. It is also possible to invert the components in the device to get cold water instead of hot in those countries where the problem is contrary to the one detailed above, that is, the hot water arrives through the cold water pipe.

Additionally, the water will flow out of the tap only when it is at the desired temperature and defined in the module, which for example can be 35ºC when it is hot and 18ºC when it is cold, although the temperatures can be adjusted according to the preferences of each market

Optionally, the device provides for the existence of an indicator to warn of the existence or not, of anomalies for not leaving hot water when the tap is opened, as well as indicating that the “hot water is coming”. Likewise, the existence of an acoustic or luminous warning device is contemplated as an alternative. It should be noted that, depending on the pump chosen and the type of pipe installation of the construction, it is even possible to reduce the usual waiting time for hot or cold water. Likewise, also optionally, a second timer can be incorporated into the module and take advantage of its usefulness, in addition to saving with water that does not yet have the desired temperature, to limit the time of hot or cold water output from the tap, so that if a predetermined time of opening of the tap is exceeded, which probably means that someone has opened the tap and has forgotten to close it, after the established time, the water passage is automatically closed, thus avoiding waste of water and Energy.

In any case, the main advantages of an installation with a water saving device are the incorporation of a single flowmeter or pressure variation meter that warns of:

A: intention to get hot water,

B: measure the water saved,

C: that water is no longer coming,

D: the loss of load of the complete circuit and therefore of the state of the same as well as of the boiler, since knowing the pressure / flow curve of the pump, we can establish it.

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Said meter, preferably a flowmeter or flow sensor or pressure comparator, although it may be a different element, is disposed upstream of the bypass line in the hot water supply section, a position that avoids the need to include two regulating means of control in said hot water supply section, that is, a flow meter downstream of the bypass and in addition another pressure regulating control means such as a pressure switch upstream of said bypass. Said flow meter can also serve as a control to incorporate a meter of the volumes of water that we have managed to avoid spilling, to have that information and offer it to the user.

By joining the data thus obtained with the water temperature at which the water is recirculated instead of letting it run down the drain, it is possible in turn to offer the data of thermal energy and saving water replacement pumping costs, which has been avoided, thanks to not wasting the water received in the hot or cold tap until it really arrives hot or cold.

Therefore, the object of the invention, installation of water to prevent the proliferation of living beings in a water installation and the stagnation of this in the conduits of buildings, is an installation that at least comprises a general water supply in the building, a hot water recirculation pipe or conduit that starts from said general connection, starting and finishing said hot water pipe, which forms a recirculation ring, before a heat source that is used to heat the water coming from the general connection and supply it to the different points of the house, said hot water pipe having a recirculation pump downstream of the heat source and before the main hot water pipe reconnects with the general connection. Said installation also comprises at least one cold water pipe or conduit that starts from the general connection. The installation comprises at least one branch of hot water that starts from a branch of the hot water pipe and at least one branch of cold water that starts from a branch of the main cold water pipe, ending each pair formed by a branch of hot water and another branch of cold water in a tap. Usually the facility will have more than one pair of branches of hot and cold water, especially in hotels and hospitals, where there will be at least one pair of branches for each room.

The installation object of the invention also comprises a water recirculation device located in at least one branch of hot water upstream of the tap connecting said at least one branch of hot water, or first branch, with another branch or

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second branch, according to the device previously described.

Said installation incorporates in the recirculation device or independent of it but connected thereto, means of activation and means of deactivation of the pump of the device, and which may or may not coincide. For example, it may comprise a second timer or programmer intended to activate the water recirculation device for at least the time necessary, from the activation of said recirculation device, to displace all the water contained between the bypass in the domestic hot water pipe (DHW) or recirculation ring of the first branch and the recirculation device also object of the invention. Sometimes, the necessary time must be doubled to guarantee a complete evacuation of water, before it becomes contaminated or once contaminated, in the round trip and in the ring. By means of an installation with the above characteristics it is guaranteed that the water contained in the branch and that it could contain living beings such as bacteria or microorganisms is completely displaced from said branch to a point of the installation where there is a temperature that ends said living beings, bacteria and microorganisms, and where it is not possible for them to proliferate, for example the hot water pipe or recirculation ring or the heat source or the accumulator. Other alternatives of means of activation and / or deactivation are possible, such as, for example, the means of measuring the temperature of the device, to activate or deactivate, or a first timer for deactivation, or manual or remote buttons to activate or deactivate the device pump.

Another application of the derivative water installation is a water installation to prevent the freezing of water from the pipes when said installation is in disuse in low temperature areas. Said water installation comprises at least one general water connection, a hot water pipe that starts from the general connection, which begins and ends before a heat source to heat the water coming from the general connection and which has a pump of recirculation downstream of the heat source and before the hot water pipe reconnects with the general connection, at least one cold water pipe that starts from the general connection, at least one branch of hot water that starts from a branch of the hot water pipe and at least one branch of cold water that starts from a branch of the cold water pipe, ending each pair formed by a branch of hot water and another branch of cold water in a tap, also comprising a water recirculation device as of claim 1 and comprising a device pump and is located in at least one branch of hot water upstream of the tap connecting or said at least one branch of water

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hot, first branch, with another branch, second branch, and a temperature measuring means that activate the pump of the device when the temperature of the water detected by them is lower than a predetermined temperature close to that of freezing, so that the water in the installation travels through the device pump

(74) by heating said water and preventing its freezing.

With the above characteristics, as well as additional ones, different water installations are presented to prevent the proliferation of living things and even the reduction or elimination of these and the stagnation of water in the pipes, ducts or water pipes of homes, buildings, especially hotels and hospitals.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, the following figures are incorporated into the present application, by way of illustration and not limitation:

Figure number 1 shows a device to prevent water stagnation in Sanitary Hot Water installations, in which the main components are shown.

Figure number 2 shows a diagram of an example of the device for thermally treating the hot and cold water pipes and also for saving water and energy, showing in it the main parts and elements it comprises, as well as its arrangement.

Figure number 3 shows a device for countries where heat causes hot water to get through cold water pipes.

Figures 4a, 4b and 4c show the operation of the device for heat countries shown in Figure 3.

Figure number 5 shows a first installation of water to prevent stagnation in its pipes by recirculating water in the branches, from the hot water branch that presents a permanent hot water recirculation, to the cold water branch.

Figure number 6 shows a second water installation to eliminate the hot water recirculation ring and thus avoid the stagnation of water in the branches of hot water at the risk of proliferation of living beings. At the same time, it is possible to reduce the energy expenditure associated with permanent recirculation, but managing to avoid the expense of water that occurs from the moment the tap is opened until

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Hot water arrives. For this, part of the recirculation ring is closed and the water is preferably emptied and driven, from the hot water branch to the cold water branch.

Figure number 7 shows a third installation of water in buildings to prevent stagnation in their pipes through the timed emptying of hot water branches. This example requires the presence of a push button or switch in the device object of the invention, in order to leave the hot water tap open without hot water flowing through it, since the solenoid valve cuts the water until it is necessary to drain.

Figure number 8 shows a fourth installation of water in buildings with recirculation of hot water running to prevent stagnation in their pipes by recirculating water in the blind branches of hot water, from the branch branch of the hot water ring to a new branch of return also of hot water, thus moving the water towards the recirculation ring. In this installation the water is forced to enter the optimum temperature of the culture broth so that it enters the hot recirculation pipe, and in this way it does not produce stagnation or proliferation of living beings in the blind branches of hot water and if there are living beings in the branch of hot water, that volume of water is sent to its heat treatment. In this system, the equipment can comprise, or not, non-return valves to allow the movement of water towards the hot recirculation ring of the hot water branch in the direction of the boiler, where it will receive a thermal shock minimizing the organic load of the water again . It also saves the water that was previously lost from the opening of the hot water tap, until the hot water from the recirculation ring arrived.

Figure number 9 shows a fifth installation of water in buildings with hot water recirculation turned off to convert the permanent hot water recirculation ring, into a recirculation ring of water not yet hot or stagnant to return to the boiler and accumulator and prevent the stagnation of temperate waters in its blind branches, also saving the energy associated with the permanent recirculation of hot water, but managing to save water until the hot water reaches the taps.

Figure number 10 shows a sixth installation of water in buildings to prevent the stagnation and proliferation of living beings in the branch of hot water derived from the recirculation ring, by injecting cold water from the branch of cold water to

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The branch of hot water. In this system the volume of water existing in the blind branches of domestic hot water (DHW) is shifted towards the hot recirculation ring and in the direction of the boiler, where the content of microorganisms will be reduced.

PREFERRED EMBODIMENTS OF THE INVENTION

In view of the aforementioned figures, the following proceeds to the description of several preferred embodiments of the device object of the present application, in which various alternatives of water installations as of devices and also the methods of operation of the device and of the facilities.

Thus, as seen in Figure 1, the device in question is formed from a single module (70) applicable to be installed sandwiched between the stopcocks of the hot (21) and cold ( 31) and a tap (60) conveniently provided with respective hot water (60a) and cold (60b) stopcocks, being essentially constituted by the following elements:

two sections of feed line for hot (71) and cold (72) water that are connected by suitable means to the hot (21) and cold water supply pipes

(31) of the tap (60); a pump (74) for the recirculation of water installed in a bypass duct (75) that communicates the hot (71) and cold (72) water pipes;

first means of regulating the flow of water (76), preferably an electrovalve, located in the bypass duct (75) and in this example on the hot water side of the pump (74), allowing or not the passage of water by the pump (74) towards the cold water pipe (72),

second means for regulating the flow of water or non-return (76b) located in the bypass duct (75), preferably on the opposite side of the pump

(74) where the first means of water flow regulation are located (76), although they could be located on the other side,

a first temperature measuring means, a thermocontact or temperature sensor, (77) disposed in the hot water supply conduit (21) upstream of the bypass conduit (75);

a control system (18) connected to said first flow or electrovalve regulation means (76), temperature measuring means (77) and to the pump (74), said control system (18) presenting activation means and electronic deactivation of the pump (74) of the device (70). For example, said activation means may be

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a second timer (not shown) that can activate periodically and automatically, for example, once a day and for 2 minutes, the pump (74) forcing the recirculation of water from the hot water pipe (21) to the cold water pipe (31), avoiding prolonged stagnation of water and therefore the proliferation of bacteria. Another means of activation may be the temperature sensor (77), which when it reaches a previously determined temperature in the control system, sends a signal to the control system that activates the pump (74) of the device, so that in this case the activation means would be not a second timer, but the temperature sensor (77). Other means of activation would be, for example, an automatic push button or a remote connector that would activate the pump through the control system. The same happens with the deactivation means, and they can be a first timer, a temperature sensor or even an activator, manual or remote, which, through the control system, stops the pump (74) of the device ( 70).

In the device, the second means of regulating the water flow (76b) can be either a non-return valve, which prevents the passage of water from the hot water pipe (21) to the cold water pipe (31) through the pump (74), or an electrovalve, in the event that the device serves both for the recirculation of water from the cold water pipe (31) to the hot water pipe (21) and vice versa. Likewise, it is possible to arrange the first flow regulation means (76) in the bypass duct (75) on the side of the pump (74) corresponding to the cold water (31), whereby the second flow regulation means (76b) arranged in the bypass duct (75) would be located on the side of the hot water (21).

In addition to the aforementioned components of the device, it is possible to include therein, according to figure 1, which shows a device for saving hot water:

a first pressure or flow meter (79), for example a flow meter, fluxostat, or pressure switch, arranged in the hot water feed section (21) upstream of the bypass (75), before a solenoid valve (78) normally open

Y

a third means of regulating the flow of water (78) located between the bypass duct (71) and the connection with the tap (60), preferably an electrovalve (78) which in combination with the first means of regulating the flow (76 ) of the bypass duct (75), allow either the passage through the bypass duct (75) or the hot water supply section (21) downstream of the bypass duct (75) and the pressure or flow meter ( 79) or the water cut from the hot water branch

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(twenty-one).

The arrangement of the first pressure or flow meter (79) in the hot water feed section (21), upstream of the bypass (75), allows:

Measure the water flow saved, and

Measure the energy saved by exchanging the information with the first means of

temperature measurement (77). In addition, with respect to solutions of the state of the art, it is possible to save a pressure switch to measure the water pressure, since when the pressure disappears the flow rate does.

The set of components next to the aforementioned control system (18), allows the analysis of the values offered by the pressure or flow meter (79) and the thermocontact or temperature sensor (77) and, likewise, governs the pump ( 74), the flow regulating means (78, 76) being conveniently connected to an energy source, preferably electrical.

The control system, associated with the different electrical / electronic components to regulate their operation in particular and the proliferation prevention device for living beings or water recirculation device in general, such as the pump, the measuring means , or sensor, of temperature, the means of regulation of discharge, the timer and the button among others, allows to generate a control and registry of temperatures, cycles and flows. Said control system can be connected to a server (not shown), through a communications port, either in a network or wirelessly, in order to be able to track the recorded data as well as manage the device in remote Acting remotely on the control system of the device object of the invention, its activation and deactivation is possible from a control center, from a mobile device, from a remote control, etc. By connecting the control system with a remote server, the management, control and recording of data, mainly of temperature, of the blind pipes, rings and branches (as well as their periodic openings) of an installation in which the device is enabled is possible find installed

In this example of figure 1, the second flow regulation means (76b) located on either side of the pump, (74), always in the bypass duct (75), although preferably on the side of the cold water (31 ), are a safety check valve arranged at the intersection of the bypass duct (75) and the cold water feed section (72), which also protects the entry of particles when the pump is stopped (74).

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The above elements are integrated, as indicated, in a single module (70) that can be installed next to the tap (60), or in the vicinity or even in the false ceiling through which the pipes (21, 31, 21´, 31´) down to the tap (60), having a completely neutral behavior except when hot water is requested, when it is activated, thanks to the action of the different components governed and managed by the control system (18).

Bypass (75) allows communication with the pump (74) of the hot water (71) and cold water (72) supply sections, said bypass (75) being adapted to divert water that has not yet reached the temperature desired, circulating from the section of hot water (71) to the section of cold water (72).

The pressure or flow meter (79), arranged in the hot water feed section (71) or 72 according to models upstream of the branch (75), allows to detect the pressure or flow in the hot water supply duct ( 71), thus preventing the pump (74) from working in a vacuum, for example with a pressure greater than zero, and also depending on the control system (18), activates the device when hot water is requested, from the tap hot water passage (60a), from the tap (60).

The non-return valve (76b) and its function is to prevent, in the event of a pressure drop in the hot water supply (21), the cold water with its highest pressure, invades the hot water pipe (21) by beat the pressure of the hot water together with the pressure that the pump (74) produces.

The means for regulating the flow of water (78, 76) are preferably composed of a solenoid valve (78) or third means for regulating the flow between the bypass duct (75) and the tap connection (60), normally open, arranged in the hot water feed section (71) downstream of the bypass duct (75), and another solenoid valve or first flow regulation means

(76) disposed in the bypass duct (75), and normally closed.

The thermocontact or temperature sensor (77) disposed in the hot water supply conduit (71) upstream of the bypass conduit (75) allows controlling the temperature of the hot water circulating through the modular device of the invention, so that if it does not reach the predetermined temperature, open the solenoid valve corresponding to the first normally closed flow regulating means (76), close the other solenoid valve corresponding to the third normally open flow regulating means (78) and operate the pump (74) to guarantee the recirculation of this water to the cold water section (72) by passing through the corresponding non-return valve

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to the second flow regulation means (76b), so that the water that is not yet hot is not lost through the drain but goes to the heating source, boiler or thermos (40), and when the water already has the expected temperature, the solenoid valve corresponding to the third flow regulating means (78), normally open, allows its exit by the tap (60).

The solenoid valve corresponding to the first flow regulation means (76) is normally closed and the solenoid valve corresponding to the third flow regulation means (78) is normally open, so that, in case of power failure, failure of the coils or disconnection of the system, the module (70) allows the use of the tap (60) as a conventional tap, preventing the use of the tap in the hot and / or cold water supply from being blocked.

Optionally, the module (70) also incorporates a warning element, associated with the control device (18), which indicates that the open tap (60) does not supply hot water yet, but is ready to arrive.

Likewise, optionally, the module (70) incorporates a "Heat source fault" warning, also associated with the management and control device (18), when, in the established time, the water does not reach the determined temperature.

According to Figure 2, it can be seen, schematically, the installation from the general water connection (10) to the point where the tap (60) is located next to which the module (70) is installed whose operation is the next:

When the hot water tap (60a) is opened, the valve associated with it causes the water contained in the hot water line (21) as well as the water contained in the section of hot water (71) of the module ( 70) start circulating. By detecting the pressure or flow meter (79) this movement, and if the thermocontact (77) contrasts that the water is not at the set temperature, the control system (18) activates the solenoid valve corresponding to the third flow regulation means (78) closing the hot water line (71) downstream of the branch (75), opening the solenoid valve corresponding to the first means of flow regulation (76) in the branch (75) and activating the pump (74) to recirculate the water to the cold water section (72) and then to the cold water pipe (31) where it returns to the main connection (10), and where the heat source, thermos or boiler (40) is requesting water, to supply the branch (71) and through it to the pump (74) until the device detects that the water is already at the desired temperature and that it can already offer it to the tap (60) through the stopcock hot water (60a) that has been opened looking for hot water , but without

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lose water

And, having reached the desired temperature measured by the thermocontact or temperature sensor (77), the control system (18) closes the solenoid valve corresponding to the first flow regulation means (76) of the bypass (75), stopping the pump (74), and opening the solenoid valve corresponding to the third flow regulation means

(78) of the section of hot water (71), thus allowing hot water with the desired temperature to flow out of the tap (60).

Optionally, a timer can be incorporated into the module (70), associated with the control unit (18), and take advantage of its utility to limit the time of hot water output from the tap, being installed so that if a time is exceeded When the tap is opened by default, the solenoid valve corresponding to the third flow regulating means (78), normally open, closes, to avoid the loss of water caused by possible tripping when the hot water stopcock is left (60a) open in the tap (60), without opening the solenoid valve corresponding to the first flow regulation means (76) normally closed.

In any application of this device, the pumping costs necessary to replace the water that no longer spills into the drain through the hot water tap until it really arrives hot and the water that spills waiting for it to arrive hot are avoided.

To prevent the proliferation of living beings, mainly bacteria and microorganisms in the installation of figure 2, installation without hot water recirculation ring, where sometimes such living beings proliferate over time in their stagnant waters due to low use or due to prior contamination, it is possible to include an activation button (not shown), different from those described so far, and connected to the control unit (18) that allows manual activation of the device so that the device pump is activated and the water recirculates until reaching a predetermined temperature, for example of 58º, that circulates throughout the installation of hot and cold water, passing through the heat source, boiler or thermos, thus minimizing the number of living beings in the installation. Once the button or switch has been pressed, and when the temperature sensor (77) of the device (70) has reached the mentioned 58 ° C., the recirculation is maintained for, for example, 5 minutes, variable depending on the dimensions of the installation. The temperature and time can be regulated according to the specific needs of each installation as well as the life forms to be eradicated. Preferably, said push button or switch must be held down for a certain time to do the

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heat treatment of pipes for safety reasons.

Although this last example of the device for saving water and recirculation to prevent water stagnation refers to water saving when it is desired to obtain hot water by the tap, depending on the climate of the place where the device is located, the device can be given in case it is the cold water stopcock (60b) that must be activated before the cold water pipes (31) are very hot because they are exposed to a very hot climate, so a device ( 69) contrary to that described so far and previously shown in Figure 1 and described below with reference to Figure 3.

Figure 3 shows a device (69) object of the present invention for installation in places with high temperatures, usually desert places, where the components of the device are arranged in an inverted manner to the device described above. Figures 4a, 4b and 4c show an example of operation of the previous device in a simple water installation. Specifically, the water that is hot but that comes through the cold water pipe (31) to the hot water pipe (21) is recycled. To compensate for the increase in volume in the hot water circuit (21), it may be necessary to incorporate an intermediate element for the accumulation of water such as a boiler (43), reservoir or a tank into said circuit or first hot water pipe (21). water bypass Likewise, an anti-return valve (25) is placed immediately upstream of the boiler (43) that prevents the water coming from the cold water pipe (31) during the recirculation from exceeding the boiler (43) and returning to the hot water pipe (31).

Likewise, if it is desired to have a device that is valid for regulating both cold and hot water, a device with the same components could be used on both sides of the pump (74), and in which the second means of flow regulation (76b) which in the previous figures are a non-return valve (76b), in this case it would be an electrovalve with the same functions as the second solenoid valve (76), arranged in the bypass duct (75).

That is, in this last example, the device would also have, in addition to the components of Figures 1 to 4, a second temperature regulating means, a second means for regulating the water flow downstream of the bypass conduit, and a second pressure or flow meter located upstream of the bypass duct (75) on the same side of the pump (74), or even using another independent pump for each circuit independently, where the second means for regulating the flow rate of water located in the bypass duct (75).

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Figure 5 shows a water installation, in particular a domestic hot water installation (DHW) with permanent hot water recirculation, in which it has been decided to minimize the risks of proliferation of living beings, such as Legionella, in risk zones (ZR, ZR´) thanks to the use of the device (70) object of the invention and in particular to the provision in the installation of a timer or programmer for the water sweep of the so-called blind branches. In these branches the optimum temperatures of development of the broth of culture of living beings (ZR, ZR´) are generated when the stagnant waters are left certain periods of time, due to lack of use. With this device, periodically, in an automated way, a recirculation of these stagnant volumes is established, thus avoiding the aforementioned risk before it occurs, and always if water has not been used for a while.

In addition to the main advantage of preventing the proliferation of living beings, this device allows the saving of all the water that was lost from the recirculation ring to the hot water outlet through the tap, since the intermediate pipes also have to be heated before they offer hot water to the tap itself from which the water and its neighbors are requested.

The water installation of Figure 5 comprises at least one general connection

(10) water, a hot water recirculation pipe (20) that starts from the general connection (10), which begins and ends in a heat source or boiler (40) to heat the water coming from the general connection ( 10), defining a hot water recirculation ring, including a recirculation pump (50) downstream, which could also be located upstream of the heat source or boiler (40) and before, although it could also be located after, the main hot water pipe or ring (20) reconnects with the boiler (40). The installation also has at least one cold water pipe (30) that starts from the general connection (10). From said hot water pipe (20) the at least one branch of hot water (21, 21 ') starts, and at least one cold water branch (31, 31') starts from a branch of the cold water pipe (30), ending each pair formed by a branch of hot water and another branch of cold water (2131, 21´31´) in a tap (60, 60´). This installation shows a first pair of branches (21, 31) and a second pair of branches (21´, 31´), presenting this second pair (21´, 31´) a water recirculation device (70) located upstream of the tap (60´), between the derivations of the hot water recirculation pipe or ring (20) and cold water pipe (30) and said tap (60´), connecting said recirculation device (70) said pair of branches (21´, 31´) and also comprising a timer or programmer that activates

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the water recirculation device (70) for at least the necessary time, from the activation of said recirculation device (70), to displace all the water contained between the bypass between the hot water recirculation ring ( 20) and the hot water branch (21´) of the second pair of branches (31´) and the recirculation device (70). Specifically, said timer activates the water recirculation device (70) to guarantee the recirculation of the volume of water contained in the hot water branch (21´) towards the cold water branch (31´), in the second pair of branches (21´31´), in the direction of the cold water pipe (30).

By means of this installation, in which the first pipe or recirculation ring (20) is active, so that the hot water circulates through the first pipe or ring

(20) constantly, and after a period in disuse in which nobody has made use of the hot water branch (21´) during a time in which the proliferation in said branch (21´) of living beings is facilitated, such as Legionella or any other bacteria or microorganism, the timer or programmer of the installation, in combination with the water recirculation device (70), will displace the volume of water before it has been possible to develop the breeding ground for living beings, towards the branch of cold water (31´) before it can pose a health risk. Said recirculation from the hot water branch (21´) to the cold water branch (31´) can last until:

A temperature sensor in the recirculation device (70) detects a

safety temperature, previously defined or programmed, and that guarantees the

system health, and / or

It is guaranteed with a periodic or timed recirculation that the entire volume of the hot water branch (21´) has been emptied and moved to the cold water pipe (30), so that the risk of proliferation of living beings is reduced as they pass at a lower thermal stage the volume of water dislodged from the branch of hot water (21´). This periodic recirculation will be carried out as long as the recirculation device (70) has not detected use of hot water in the branch (21 ') for a set time.

By means of this installation, the water from the hot water branch (21´) that is tempered in the second cold water pipe (30) is injected.

The advantages of this system are to prevent the proliferation of Legionella, bacteria and microorganisms, and water saving from the opening of the hot water tap (60) until the hot water arrives through the hot water branch (21´).

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Also, Figure 6 shows a scheme of a domestic hot water installation, identical to the installation of Figure 5, in which it has been decided to eliminate the permanent recirculation of the first pipe or ring (20b) by means of the first means arrangement of condemnation (24) of said first pipe (20b) between the branch of the at least one branch of hot water (21 '), the last branch that the installation requires of hot water, and the source of heat (40) and the arrangement of second means of condemnation (24 ') immediately before the hot water pipe (20b) returns to said heat source (40). The section between the means of condemnation (24, 24´), is therefore closed by cutting keys and will also be purged or emptied by means of a purge element (D) to avoid stagnant water in the installation.

In this way, the hot water recirculation through the hot water pipe (20b) is inactive converting a hot water recirculation ring installation (20b) into a conventional instantaneous hot water production circuit, similar to that of Figure 2 By eliminating the permanent heat source of the hot ring, the risk of proliferation of living beings is reduced, since once the demand for hot water, pipes (20b) and branches (21, 21´,) is over they return to lower temperatures, until they are located by a simple natural loss of heat, at the same temperature in which they are cold water. In this way, the proliferation risk values or containing living beings in the hot water pipes are reduced, to values similar to those of the cold water pipe. In addition, of course, we avoid losing large volumes of water until it arrives hot through the hot water pipe (20b) thanks to the improved device (70) of the present invention, installed in Figure 6 between the second pair of branches (21 ´, 31´) and incorporating to the device (70) mentioned other components intended for saving water and energy.

Therefore, the advantages of this installation are:

Prevent living beings, and reduce their risk because it becomes

installation in an instant hot water production system, low

risk, compared to recirculation systems that are considered high risk,

Saving of thermal energy that is no longer consumed by having canceled the ring

permanently hot (20) of figure 5 and turn it into the water pipe

hot (20b) that will only be hot when there is demand for water

hot,

Saving in cooling energy that is often used in warm areas

to combat both ambient heat and the recirculation ring

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hot water (20) of figure 5,

Savings in electric power by not having a pump (50) running 24 hours a day

hours for hot water recirculation, and

Saving water.

Additionally, the fact of not having to replace the water discharged by the drain, with new water from the supply network, in many cases means a reduction in pumping costs, which exist in many facilities.

Figure 7 shows an installation similar to that of Figure 5, that is, with a hot water recirculation ring (20) with the difference that the activation of the water recirculation device (70) causes the tap to open ( 60) to force the exit of at least the water contained in the hot water branch or first branch (21´). Through this installation and if no one has used the hot water pipe for a period of time, to evacuate the volume of water from the hot water branch (21 ') where living beings can live comfortably, for example Legionella or other microorganisms , in the zones of proliferation (ZR´), it facilitates the exit of said volume of water through the tap

(60)

of hot water. For this, it is necessary to leave said hot water tap (60a) open so that the water recirculation device (70) is responsible for closing and opening it by opening and closing the third flow regulation means

(78)

arranged in said recirculation device (70) and activated by the timer or programmer of the installation. Said third flow regulation means (78) arranged in the recirculation device (70) can remain open, once activated, until it is detected that the temperature of the water leaving the tap (60) is such that it reaches the temperature for the time required to reduce the content of living beings. Once the aforementioned temperature has been reached, or once a certain period of time has passed, the third flow regulation means (78) will close and the installation will be waiting to be used.

This installation is particularly useful when the tap (60) is going to be long periods without being used, for example in low hotel seasons, when the hotel is closed or in hospitals or in houses with disused rooms in which the appliance is not used. tap. The installation can be started by manual activation of the timer or programmer, or by programming said timer or programmer.

Figure 8 shows a fourth installation of water in buildings to prevent

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water stagnation and proliferation of living beings in their conduits (ZR, ZR ') through the recirculation of water in the branches, from the branch of hot water (21, 21') to a new second intermediate branch of recirculation (22, 22 ´), also of hot water, thus moving the water towards the hot water pipe or recirculation ring (20). With respect to previous installations, the second branch is a pipe (22, 22´) disposed between a branch of the hot water pipe or recirculation ring (20) and the water recirculation device (70), and the water branch cold (31, 31 ') is a pipe from a deviation from a main cold water pipe (30) and the tap (60).

In particular, this installation incorporates a second branch (22, 22 ') that extends from a deflection in the hot water pipe or recirculation ring (20) to the recirculation device (70), so that a small circuit between the hot water branch (21, 21´), the recirculation device (70) and the second branch (22, 22´) disposed between said recirculation device (70) and the recirculation ring (20). Through this installation, and if users have not used hot water, to prevent the proliferation of living beings in a risk zone (ZR), the recirculation device (70) will pump the volume of water contained in the water line heat (21, 21´) to said recirculation device (70) and all that volume of water will be returned by the new second branch added until said water volume and the content of the second branch (22, 22´) are incorporated from the hot water recirculation ring (20) and also in the direction of the boiler (40) or boiler (40) plus accumulator (45), where for reasons of temperature the population of said living beings will decrease.

The recirculation device (70) can be activated by opening the hot water stopcock (60a).

It is possible, to prevent the volume of water dislodged by the new second branch (22, 22´) from entering again through the recirculation ring (20) in the hot water branches (21, 21´) placing between both deviations (21, 22 and between 21 ', 22') in the hot water recirculation ring (20), non-return valves (80).

This facility has as its main advantages the prevention of proliferation of living beings, such as microorganisms and bacteria, and the saving of water.

Figure 9 shows a fifth installation of water in buildings to prevent the stagnation and proliferation of living beings (ZR) in their conduits by recirculating water in the branches, from the hot water branches (21, 21´) towards a few seconds intermediate branches or recirculation branches (22, 22´), also of hot water, thus moving the water towards the hot water pipe or recirculation ring

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(20f), in this case off, which comprises non-return valves (80) to enable the movement of water from the hot water branches (21, 21 ') towards the boiler (40). Specifically, in the recirculation ring (20 f), non-return valves (80) are placed after the branches to the hot water branches (21, 21 ’) and before the return leads (22, 22’). The recirculation pump (50) in this case, can be stopped or bridged and it is the pumps (74) of the devices (70), which guarantee the movement of these volumes thanks to the non-return valves (80), in the direction of the boiler (40) or the boiler (40) and accumulator (45), where they will receive the thermal shock that reduces the microbiological population

The advantages of this installation are the reduction of energy costs (electricity, gas and refrigeration), and a safer system against the proliferation of living beings, thanks to moving from a permanent hot recirculation ring installation to an instantaneous heating installation of water, offering water savings and also forces all the water from the branches from time to time to pass through the boiler.

In the installations described in Figures 5 to 9, the water recirculation device (70) is preferably one according to Figure 1, while Figure 10 described below shows a sixth installation of water in buildings to prevent stagnation and proliferation of living beings in their conduction (ZR´) by means of the recirculation of the water in the branches, from the branch of cold water (31´) to the branch of hot water (21´) by means of a recirculation device (68) like the shown in figure 3. In this installation, which is similar to the installation of figure 5, but unlike this and those described above, the water is recirculated from the second branch of cold water (31 ') to the first branch of hot water (21´), so that the volume of water of said first branch (21´) is pushed towards the hot water ring (20).

In this installation it is possible that a water accumulation element (43), arranged in the recirculation ring (20), is necessary to absorb the variations in water volume in said ring (20) due to the introduction of additional water and that it may not have a temporary place in said ring (20).

In this installation it is achieved using the conventional pipes of a construction with recirculation, that the volumes of water contained in the branch (21) where there can be a development of living beings are cauterized in the ring (20) or with the entrance into the boiler (40) or accumulator (45) with the simple injection of cold water to displace these potentially dangerous volumes.

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The recirculation device (70) allows, in addition to the detailed functions, to prevent water inside many of the described figures, with or without recirculation, the pipes, branches and pipes of a domestic hot or cold water installation freeze during winter periods in which the installation is not used.

5 To do this, if the temperature picked up by the temperature sensor is such that there is a risk that the pipes will freeze (after predetermining said temperature), the device starts up, starts the boiler if it is connected, recirculates hot water through installation until the freezing risk temperature that could cause the pipes to break is exceeded. If on the contrary the boiler or heat source cannot be put in

10 because, for example, it lacks fuel or is switched off, the device pump will also start and cause the water to recirculate through the installation, so that this recirculation, added to the heating of the water derived from its passage through the pump, depending on the installation and its exposure to cold, enough to prevent water in the pipes from freezing. According to the above, a water installation is formed,

15 which could be any of the previously explained, in which the water recirculation device (70), comprising the device pump (74) and a temperature measuring means, or sensor, that activate the pump (74 ) of the water recirculation device (70) when the temperature of the water detected by the temperature regulating means is lower than a predetermined temperature close to that of

20 freezing, so that the water of the installation moves through the device pump (74) by heating said water and preventing its freezing, in combination or not with the activation of the heat source, until about means for deactivating or stopping the pump (74) of the device (70) act. These deactivation means may well be the temperature measuring means that it reaches.

25 a predetermined temperature, or a second timer that acts if, after a certain time has elapsed, said deactivation temperature has not been reached.

Claims (10)

U201431700 12-30-2014 1. Installation of water to prevent the proliferation of living beings in the water pipes of buildings, of the type comprising at least:

a general water connection (10),

a pipeline from recirculation from Water hot (20) that part of the rush

general (10), which begins and ends

before from a heat source (40) for

heat the water coming from the general connection (10) and which has a

recirculation pump (50) downstream of the heat source (40) and before

the hot water pipe (20) reconnect with the general connection (10),

at least one cold water pipe (30) that starts from the general connection (10),

at least one branch of hot water (21, 21´) that starts from a branch of the

hot water pipe (20) and at least one branch of cold water (31, 31´) that starts

of a branch of the cold water pipe (30), ending each pair formed

by

a branch of hot water and another branch of cold water (2131, 21´31´) in a

tap (60, 60´),

and characterized in that it comprises a recirculation device (70) located in at least one branch of hot water (21, 21´) upstream of the tap (60, 60´) connecting said at least one branch of hot water (21, 21´ ), first branch, with another branch (31, 31´, 22, 22´), second branch, comprising: A pump (74) for the recirculation of water installed in a bypass duct (75) between the section of lines for hot (71) and cold (72) water, At least some first means of regulating the water flow (76) located in the bypass duct (75) on one side of the pump (74), which allow or not the passage of water to the pump, At least a second means of regulating the flow of water (76b) also located in the bypass duct (75) where the first means of regulating the flow (76) are located, and A control system (18) connected at least to said first water flow regulation means (76) and to the pump (74), At least one first temperature measuring means (77) disposed between the connection to the branch pipes (21,31) and the bypass duct (75), upstream of said bypass duct (75), connected with the control system (18), 29 U201431700 12-30-2014 Electronic means for activating the pump, connected to the control system, which activate or start the pump, and Electronic means for deactivating the pump, connected to the control system, which deactivate or stop the pump.

2.

Installation according to claim 1, characterized in that the activation means of the device pump start the pump of the water recirculation device (70) for the recirculation of water between the first branch (21, 21 ') and the second branch (31, 31´, 22, 22´), or vice versa, until the control system activates the means for deactivating the device pump.

3.

Installation according to claim 2, characterized in that the pump of the device is running for at least the necessary time, from the activation of the pump of said recirculation device (70), to move all the water contained between the bypass in the hot water pipe (20) of the first branch (21, 21´) and the recirculation device (70).

Four.

Installation according to claim 2, characterized in that the pump of the device is running for at least the necessary time, from the activation of the pump of said recirculation device (70), so that the first temperature meter reaches a predetermined target temperature at the branch in the hot water pipe (20) of the first branch (21, 21´).

5.

Installation according to claim 1, characterized in that the activation of the pump of the water recirculation device (70) causes the opening of at least a third means of regulating the water flow (78) arranged in the regulating device

(70) and therefore from the tap (60) to force the exit of at least the water contained in the first branch (21, 21´).

6.

Installation, according to claim 1, characterized in that the second branch is the cold water branch (31, 31 ') that starts from a branch of the cold water pipe (30) to the water recirculation device (70).

7.

Installation, according to claim 1, characterized in that it comprises a water accumulation element (43) in the hot water pipe (20) between the at least one branch of hot water (21 ') and the pump of the installation (50).

8.

Installation according to claim 5, characterized in that the hot water pipe

(twenty)

comprises first means of condemnation (24) of said hot water pipe

(twenty)

located between the branch of the at least one branch (21´´) and the heat source (40) and second means of condemnation (24´) located immediately before the pipeline

30 U201431700 12-30-2014 hot water (20) return to said heat source (40). 9. Installation according to claim 1, characterized in that the second branch is a conduit or pipe (22, 22 ') disposed between a branch of the hot water pipe (20) and the water recirculation device (70), and the cold water branch (31, 5 31´) is a conduit or pipe from a deviation from the cold water pipe (30) and the tap (60). 10. Installation according to claim 8, characterized in that the hot water pipe (20) comprises between the first branch (21, 21´) and the second branch (22, 22´) a non-return valve (80), and because the pump (50) is canceled. Installation according to claim 2, characterized in that the means for activating the pump of the device (70) are the means of measuring the temperature that activates said pump of the device when the temperature of the water detected by it is less than a predetermined temperature close to the freezing temperature, the installation water moving through the device pump (74) by heating said water and 15 avoiding the freezing of the same, until the means of deactivating the pump of the device act. 31