FR2830317A1 - Hydraulic interface between production and distribution of hot and chilled water, uses separate zones in self-contained module for generation and storage of hot and chilled water, for distribution and for connection to building network - Google Patents

Abstract

The modular unit is installed outside a building and connects to the electrical and hydraulic circuits of the building. The unit contains a zone for hot and chilled water production and storage (6,7) and distribution (8-15), and a second zone at the bottom of the unit for connection to the electrical and hydraulic network of the building.

Description

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HYDRAULIC INTERFACE DEVICE
BETWEEN THE PRODUCTION AND DISTRIBUTION OF HOT WATER AND WATER
The present invention relates to a hydraulic interface device which is arranged between the primary heating and cooling production networks and the heating and cooling terminals of a building, with or without the production of domestic hot water.

This hydraulic system is provided for all buildings and more specifically for all the needs of hotels of all standing of the traditional type or belonging to groups.

The hydraulic device is intended to be installed outside buildings and mainly on the terrace of establishments.

The purpose of the hydraulic device according to the present invention is to produce an assembly which is delivered, assembled and ready to be electrically and hydraulically connected to external production means such as boilers or building coolers.

Also, the hydraulic device according to the present invention is of a modular design allowing the connection in parallel to a primary loop of hot water and to a primary loop of chilled water of production and distribution modules.

The modular hydraulic device according to the present invention comprises a horizontal chassis, a first production area located above said chassis and which consists of hot and cold water supply manifolds and production and distribution modules. hot and cold water mixed or not, and a second connection area located below the chassis for connection to the production and distribution network of the building of manifolds outlets and outlets, and production modules and distribution.

The modular hydraulic device according to the present invention comprises, above the horizontal chassis, a hot water collector, a chilled water collector, an expansion module, a water treatment module, a measurement module, a heat production module, a cold production module and at least one heating and cooling network module.

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The modular hydraulic device according to the present invention comprises a horizontal frame on which are disposed and fixed vertical and horizontal walls while doors allow access to the interior of the hydraulic device.

The modular hydraulic device according to the present invention comprises hot and cold manifolds which are made of black steel tube forming a low-pressure mixing bottle and are each equipped with an automatic drain valve coupled with a manual purge valve at the top, a ball valve drain valve.

The modular hydraulic device according to the present invention comprises an expansion module which consists of closed expansion vessels with a fixed initial gas charge, said expansion vessels being isolated from the manifolds by isolation valves with ball valves without handle. .

The modular hydraulic device according to the present invention comprises a water treatment module which consists of a simple circulator with submerged rotor and a sludge separator which is equipped at the top with an automatic drainer, a drain manual, a funnel on a plug and in the lower part of a drain valve.

The modular hydraulic device according to the present invention comprises a measurement module which comprises on the hot and cold manifolds glove fingers for thermometers or temperature probes, safety aquastats, safety pressure switches and pressure gauges mounted on plugs isolation.

The modular hydraulic device according to the present invention comprises a heat production module which comprises a first boiler outlet connection on one of the pipes of the hot manifold which is made up of an isolation valve and a check valve. return and a second boiler return connection on the other pipe of the hot manifold which consists of an isolation valve and a simple accelerator with flooded rotor.

The modular hydraulic device according to the present invention comprises a cold production module which comprises a first chilled water outlet connection on the first pipe of the cold manifold which is made up of an isolation valve and a check valve. return, and a second return connection of chilled water on the second pipe of the cold collector which consists of an isolation valve and a simple accelerator with flooded rotor or a simple in-line pump.

The modular hydraulic device according to the present invention comprises a heating and cooling network module which comprises valves

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 for isolating the hot and cold manifolds, pre-mixing bypass with adjustment tees for the hot and cold manifolds, a double accelerator with submerged rotor, an outward isolation valve and a return and balancing isolation valve for allow the distribution of unmixed hot water from the boiler and unmixed cold water from the cooler.

The modular hydraulic device according to the present invention comprises at least one network module for heating and cooling with mixed hot water which comprises isolation valves for the hot and cold manifolds, pre-mixing bypass with adjustment tees for the hot manifolds and cold, a double accelerator with flooded rotor, a flow isolation valve and a balancing and isolation isolation valve and a motorized mixing valve.

The description which follows with reference to the appended drawings, given by way of nonlimiting example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing: FIGS. 1 and 2 are views showing the chassis and the external protective walls of the hydraulic device according to the present invention.

Figure 3 is a top view illustrating, for example, the arrangement of the various modules constituting the hydraulic device according to the present invention.

Figures 4 and 5 are views showing a heat production module of the hydraulic device according to the present invention.

Figures 6 and 7 are views illustrating a cold production module of the hydraulic device according to the present invention.

Figures 8 and 9 are views showing a network module of unmixed hot water and unmixed cold water of the hydraulic device according to the present invention.

Figures 10 and 11 are views showing a first network module of mixed hot water and unmixed cold water of the hydraulic device according to the present invention.

Figures 12 and 13 are views illustrating a second network module of mixed hot water and unmixed cold water of the hydraulic device according to the present invention.

FIGS. 1 to 3 show a hydraulic device 1 according to the present invention comprising a horizontal frame 2 on which are arranged and fixed vertical 3 and horizontal 4 walls in order to delimit an internal space intended to receive different production and distribution modules .

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Certain vertical walls 3 include doors 5 allowing access to the interior of the hydraulic device 1 in order to be able to intervene on the production and distribution modules.

The hydraulic device 1 comprises, above the horizontal frame 2, a hot water collector 6, a chilled water collector 7, expansion modules 8, a water treatment module 9, a measurement module 10, a heat production module 11, a cold production module 12 and at least one heating and cooling network module 13 to 15.

The hot 6 and cold 7 collectors are made of black steel tube forming a low-pressure mixing bottle. They are each fitted with an automatic drain valve, coupled with a manual drain valve at the top. The hot 6 and cold 7 manifolds are fitted with a ball valve drain valve.

Threaded connections are provided on the collectors 6 and 7 for the connections of the various modules 8 to 15.

The connection of the hydraulic device 1 to the production and distribution network of the building is provided below the chassis 2 in order to simplify the installation and connection of the outlets and outlets of the collectors 6,7 and the production and distribution modules 8 at 15.

Thus the hydraulic device 1 comprises a first production zone which is located above the chassis 2 and which consists of hot water 6 and cold water supply manifolds 7 and production and distribution modules 8 to 15 .

The hydraulic device 1 comprises a second connection zone which is located below the chassis 2 for connection to the production and distribution network of the building, of the feeders and outlets of the collectors 6,7 and of the production and distribution modules 8 at 15.

The expansion module 8 comprises expansion vessels 16 closed with a fixed initial gas charge. The vessels 16 are isolated from the collectors 6 and 7 by isolation valves with a ball valve without a handle.

To limit the height of the hydraulic device 1, the unit capacity of the expansion vessels 16 is capped at 300 liters.

The filling pressure of the installation is by default 0.5 bar higher than the inflation pressure of the expansion vessels 16. The water thus contained in the vessel acts as a water reserve.

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When the hydraulic device is installed at the highest point of the installation or of the building's production and distribution network, the filling pressure of the installation is at least equal to the minimum pressure necessary for pump suction. Otherwise, the filling pressure is defined to ensure a minimum pressure of 0.5 bar at the point of installation to ensure good degassing.

The expansion vessels 16 are dimensioned so that the maximum pressure in the installation is 0.5 bar lower than the set pressure of the safety valves of boilers and coolers.

The water treatment module 9 comprises a simple circulator with submerged rotor and a sludge separator. The sludge separator is equipped at the top with an automatic trap, a manual purge, a funnel on plug and at the bottom with a drain valve.

The operating principle of the sludge separator is based on the physical separation of the bodies suspended in the water of the closed circuit thanks to the combined actions of gravitation, mechanical filtration and magnetic capture.

The position of the magnets outside the body of the sludge separator without direct contact with the water in the installation, guarantees continuous efficiency of the magnetic capture. It is found in this case that there is no saturation of the magnets.

The measurement module 10 comprises, on the hot 6 and cold 7 collectors, glove fingers for thermometers or temperature probes, safety aquastats, safety pressure switches and manometers.

In Figures 4 and 5, there is shown the heat production module 11 which comprises one or two hydraulic connections pending for one or two hot water boilers.

The first boiler outlet tapping on one of the pipes of the manifold 6 comprises an isolation valve 17 and a non-return valve 18.

The second boiler return connection on the other pipe of the manifold 6 comprises an isolation valve 19 and a simple accelerator 20 with a flooded rotor.

In the upper part of the isolation valves 17 and 19 are arranged automatic bleeders making it possible to purge the air from the networks.

In Figures 6 and 7, we have shown the cold production module 12 which includes one or two hydraulic connections on standby for water coolers.

The first chilled water outlet connection on the first pipe of the manifold 7 comprises an automatic vent 21 and an isolation valve 22.

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 The second chilled water return connection on the second pipe of the manifold 7 comprises an isolation valve 23 and a simple accelerator 24 with submerged rotor or a simple in-line pump.

The cold production module 12 can optionally include two fingers of gloves 27 for thermometers or temperature probes which are arranged on the flow and return.

In FIGS. 8 and 9, the network module 13 of the hydraulic device 1 has been shown making it possible to distribute unmixed hot water coming from the boiler and unmixed cold water coming from the cooler.

The heating and cooling network module 13 comprises isolation valves 28 of the hot 6 and cold 7 collectors, pre-mix bypass 29 with control valve 30 of the hot 6 and cold 7 collectors, a double accelerator with embedded rotor 31, a flow isolation valve and a balancing and return isolation valve.

Two glove fingers 32 can be provided for thermometers or temperature probes which are placed on the flow and return of the network module 13.

For constant temperature networks, bypass 29 allows the choice of a secondary flow temperature higher than the primary flow temperature.

The bypass 29 is equipped with a flow adjustment member. The diameter of the bypass and the flow control member are sized according to the primary and secondary temperatures. The default speed is equal to 10% of the nominal speed of the secondary network.

The nominal flow rate of the network is adjusted by means of an adjustment valve, not shown, placed on the return.

The balancing valves on the control valve are sealed and also act as an isolation valve. The nominal flow setting is retained when the valve is reopened (blocking of the nominal setting position).

In FIGS. 10 to 13, the network modules 14 and 15 of the hydraulic device 1 have been shown making it possible to distribute mixed hot water and unmixed cold water coming from the cooler.

Each network module 14 and 15 comprises isolation valves 33 of the hot 6 and cold 7 collectors, a pre-mix bypass 34 with control valve 35 of the hot 6 and cold 7 collectors, a double accelerator 36 with flooded rotor, a flow isolation valve and a balancing and return isolation valve.

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Two glove fingers 37 can be provided for thermometers or temperature probes which are placed on the flow and return of each network module 14 and 15.

Each mixed network 14 and 15 includes, in addition to the components of an unmixed network, a three-way motorized mixing valve 38, a bypass 34, a flow temperature controller as a function of the outside temperature, a thermowell 37 and a flow temperature sensor.

All heating and cooling networks are equipped with a pre-mix bypass 34. This bypass 34 ensures (for regulated networks with variable temperature) the operation of the mix valve 38 over 100% of its travel , and dimension this valve only according to the primary flow (less than or equal to the secondary flow).

The principle of connection to the low pressure manifolds 6 and 7 of the mixed network modules 14 and 15 makes it possible to retain three-way mixing valves 38.

The hydraulic device 1 according to the present invention may include other network modules which are added according to the heating and / or cooling needs of the building.

A filling module can be provided which includes a backflow preventer with controllable reduced pressure zone and isolation valves for alternating filling of closed heating and cooling circuits.

The hydraulic device 1 may include a boiler module which includes one or two roof boilers.

The boilers are fitted with all regulating and safety devices, flue pipes, flow and return hydraulic isolation valves and a gas isolation valve.

Also, as required, the hydraulic device 1 can include a sanitary hot water module which comprises at least two standby valves on the hot manifold 6.

The domestic hot water module includes for the primary network, a three-way motorized mixing valve, a constant temperature regulator, a double primary circulator with flooded rotor, one or more plate exchangers.

The domestic hot water module includes for the secondary network, two isolation and balancing valves awaiting connection of cold water and circulation, a single domestic charge pump and an isolation valve from hot water.

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The domestic hot water module includes four glove fingers for thermometers or temperature sensors entering and leaving the exchanger.

A safety valve, an automatic air vent and a safety aquastat are also provided from the domestic hot water from the module.

The hydraulic device 1 is equipped with an electrical cabinet 25. The electrical cabinet 25 can be equipped on request with a powerful supply for the boilers and for the antifreeze protection of the external chilled water pipes.

This electrical cabinet 25 integrates the regulators which actuate the valves of the mixed networks 14, 15 according to the set parameters.

It should moreover be understood that the above description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by any other equivalent.

Claims (11)

 CLAIMS 1. Modular hydraulic device placed between the production and distribution of hot water from a boiler and chilled water from a chiller belonging to a building, characterized in that it comprises a horizontal frame (2) , a first production zone located above said chassis and which is made up of hot water (6) and cold water (7) supply manifolds and production and distribution modules (8 to 15) , and a second connection zone located below the chassis (2) for the connection to the production and distribution network of the building of the feeders and outputs of the collectors (6,7), and of the production and distribution modules ( 8 to 15). 2. Modular hydraulic device according to claim 1, characterized in that it comprises above the horizontal frame (2), a hot water collector (6), a chilled water collector (7), a module expansion (8), a water treatment module (9), a measurement module (10), a heat production module (11), a cold production module (12) and at least one heating and cooling network (13,14, 15). 3. Modular hydraulic device according to claim 1, characterized in that it comprises a horizontal frame (2) on which are arranged and fixed vertical (3) and horizontal (4) walls while doors (5) allow the access to the interior of the hydraulic device (1). 4. Modular hydraulic device according to claim 2, characterized in that the hot (6) and cold (7) manifolds are made of black steel tube forming a low-pressure mixing bottle and are each equipped with an automatic drain valve lined with '' a manual purge valve in the upper part, a ball valve drain valve. 5. Modular hydraulic device according to claim 2, characterized in that the expansion module (8) comprises expansion vessels (16) closed at a fixed initial gas charge, said expansion vessels being isolated from the collectors (6 , 7) by ball valves without handle. 6. Modular hydraulic device according to claim 2, characterized in that the water treatment module (9) comprises a simple circulator with submerged rotor and a sludge separator which is equipped in the upper part with an automatic drainer, a manual purge, a funnel on a plug and at the bottom, a drain valve. <Desc / Clms Page number 10> 7. Modular hydraulic device according to claim 2, characterized in that the measurement module (10) comprises on the hot (6) and cold (7) manifolds fingers of gloves for thermometers or temperature probes, aquastats of safety, pressure switches and pressure gauges mounted on isolation valve. 8. Modular hydraulic device according to claim 2, characterized in that the heat production module (11) comprises a first boiler outlet connection on one of the pipes of the hot manifold (6) which consists of a valve d insulation (17) and a non-return valve (18), and a second boiler return connection on the other pipe of the hot manifold (6) which consists of an isolation valve (19) and d '' a simple accelerator (20) with flooded rotor. 9. Modular hydraulic device according to claim 2, characterized in that the cold production module (12) comprises a first chick starting from chilled water on the first pipe of the collector (7) which consists of a valve isolation (22) and a non-return valve, and a second chilled water return tap on the second manifold pipe (7) which consists of an isolation valve (23) and a simple accelerator (24) with flooded rotor or a simple in-line pump. 10. Modular hydraulic device according to claim 2, characterized in that the heating and cooling network module (13) comprises isolation valves (28) of the hot (6) and cold (7) manifolds, a pre bypass -mixture (29) with adjustment valve (30) for the hot (6) and cold (7) manifolds, a double accelerator (31) with submerged rotor, a flow isolation valve and a balancing and isolation valve return to allow distribution of unmixed hot water from the boiler and unmixed cold water from the cooler. 11. Modular hydraulic device according to claim 2, characterized in that each network module (14, 15) of heating and cooling with mixed hot water comprises isolation valves (33) of the hot (6) and cold (7) manifolds. ), a pre-mix bypass (34) with regulating valve (35) for the hot (6) and cold (7) manifolds, a double accelerator (36) with flooded rotor, a flow isolation valve and a valve d balancing and return isolation, and a motorized mixing valve (38).