ITMI20111825A1 - INSTANT GAS WATER HEATER - Google Patents
INSTANT GAS WATER HEATER Download PDFInfo
- Publication number
- ITMI20111825A1 ITMI20111825A1 IT001825A ITMI20111825A ITMI20111825A1 IT MI20111825 A1 ITMI20111825 A1 IT MI20111825A1 IT 001825 A IT001825 A IT 001825A IT MI20111825 A ITMI20111825 A IT MI20111825A IT MI20111825 A1 ITMI20111825 A1 IT MI20111825A1
- Authority
- IT
- Italy
- Prior art keywords
- water
- gas
- water heater
- nozzles
- gas burner
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/085—Regulating fuel supply conjointly with another medium, e.g. boiler water using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/087—Regulating fuel supply conjointly with another medium, e.g. boiler water using mechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2208/00—Control devices associated with burners
- F23D2208/10—Sensing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00003—Fuel or fuel-air mixtures flow distribution devices upstream of the outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00017—Assembled burner modules
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14041—Segmented or straight line assembly of burner bars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14641—Special features of gas burners with gas distribution manifolds or bars provided with a plurality of nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/24—Valve details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2237/00—Controlling
- F23N2237/10—High or low fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/174—Supplying heated water with desired temperature or desired range of temperature
- F24H15/175—Supplying heated water with desired temperature or desired range of temperature where the difference between the measured temperature and a set temperature is kept under a predetermined value
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/176—Improving or maintaining comfort of users
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/305—Control of valves
- F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Combustion (AREA)
- Control For Baths (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Description
DESCRIZIONE DESCRIPTION
del brevetto per invenzione industriale dal titolo: of the patent for industrial invention entitled:
“SCALDABAGNO ISTANTANEO A GAS†⠀ œ INSTANT GAS WATER HEATERâ €
La presente invenzione riguarda uno scaldabagno di tipo istantaneo e alimentato a gas. The present invention relates to an instantaneous and gas-powered water heater.
In particolare, la presente invenzione riguarda uno scaldabagno istantaneo e alimentato a gas, il quale à ̈ configurato per operare congiuntamente con un serbatoio in un cui à ̈ immagazzinata acqua riscaldata dal sole o da altra fonte di calore naturale. In pratica, lo scaldabagno istantaneo à ̈ alimentato con l’acqua contenuta nel serbatoio e ha la funzione di eventualmente accrescere la temperatura dell’acqua quando la temperatura dell’acqua à ̈ inferiore a un valore predeterminato. In particular, the present invention relates to an instantaneous and gas-powered water heater, which is configured to operate jointly with a tank in which water heated by the sun or other natural heat source is stored. In practice, the instantaneous water heater is fed with the water contained in the tank and has the function of possibly increasing the water temperature when the water temperature is lower than a predetermined value.
Generalmente, gli scaldabagni sono apparecchiature relativamente semplici dal punto di vista costruttivo in modo da mantenerne basso il costo di fabbricazione. Tuttavia, alcune funzioni di controllo devono essere garantite sia per il confort dell’utente, sia per l’economicità di esercizio. In particolare, la modalità di funzionamento secondo la quale acqua preriscaldata viene alimentata allo scaldabagno impone la necessità di regolare la quantità di calore fornita all’acqua preriscaldata in modo da evitare eccessivi sbalzi di temperatura nell’acqua erogata dallo scaldabagno. Generally, water heaters are relatively simple equipment from the constructive point of view so as to keep the manufacturing cost low. However, some control functions must be guaranteed both for the comfort of the user and for the economy of operation. In particular, the operating mode according to which preheated water is fed to the water heater requires the need to regulate the amount of heat supplied to the preheated water in order to avoid excessive changes in temperature in the water supplied by the water heater.
Uno scopo della presente invenzione à ̈ quello di realizzare uno scaldabagno istantaneo a gas che sia in grado di coniugare semplicità costruttiva, economicità di esercizio, e confort per l’utente. An object of the present invention is to realize an instantaneous gas water heater which is able to combine construction simplicity, operating economy, and comfort for the user.
In accordo con la presente invenzione à ̈ realizzato uno scaldabagno istantaneo a gas; lo scaldabagno comprendendo un circuito dell’acqua alimentabile con acqua riscaldata da un’altra fonte di calore, preferibilmente naturale; un bruciatore a gas per generare fumi caldi; uno scambiatore di calore per trasferire calore dai fumi caldi all’acqua circolante nel circuito dell’acqua; un dispositivo di regolazione per regolare la portata di gas al bruciatore a gas in funzione della portata di acqua lungo il condotto dell’acqua; e un dispositivo di parzializzazione per parzializzare il bruciatore a gas in funzione della temperatura dell’acqua nel circuito dell’acqua a monte dello scambiatore di calore. In accordance with the present invention, an instantaneous gas water heater is realized; the water heater including a water circuit that can be fed with water heated by another heat source, preferably natural; a gas burner to generate hot fumes; a heat exchanger to transfer heat from the hot fumes to the water circulating in the water circuit; an adjustment device to adjust the gas flow to the gas burner according to the water flow along the water pipe; and a capacity control device for partializing the gas burner according to the water temperature in the water circuit upstream of the heat exchanger.
In questo modo, il bruciatore a gas à ̈ regolato sia in funzione della portata di acqua che transita attraverso lo scambiatore di calore, sia in funzione della temperatura dell’acqua all’ingresso nello scambiatore di calore. La regolazione del bruciatore a gas permette di ridurre in modo considerevole le oscillazioni di temperatura determinate dalle variazioni di portata e di temperatura dell’acqua all’ingresso dello scambiatore, in modo semplice ed economico. Tale soluzione à ̈ applicabile per la regolazione della temperatura dell’acqua quando l’acqua à ̈ riscaldata da più fonti. In this way, the gas burner is regulated both according to the flow of water that passes through the heat exchanger and according to the temperature of the water entering the heat exchanger. The adjustment of the gas burner allows to considerably reduce the temperature fluctuations caused by the variations in flow rate and temperature of the water at the inlet of the exchanger, in a simple and economical way. This solution is applicable for regulating the water temperature when the water is heated from several sources.
Secondo una preferita forma di realizzazione della presente invenzione il dispositivo di regolazione à ̈ di tipo meccanico e comprende un organo deformabile atto a deformarsi in funzione della portata di acqua, e una valvola di modulazione del gas collegata all’organo deformabile. According to a preferred embodiment of the present invention, the adjustment device is of the mechanical type and comprises a deformable member able to deform according to the water flow rate, and a gas modulation valve connected to the deformable member.
In questo modo, non sono necessari servomeccanismi asserviti elettricamente. In this way, electrically interlocked servos are not required.
Secondo una preferita forma di attuazione della presente invenzione, il bruciatore a gas comprende una pluralità di primi ugelli e una pluralità di secondi ugelli; il dispositivo di parzializzazione essendo configurato per escludere l’alimentazione del gas alla pluralità di secondi ugelli. According to a preferred embodiment of the present invention, the gas burner comprises a plurality of first nozzles and a plurality of second nozzles; the throttling device being configured to exclude the gas supply to the plurality of second nozzles.
La struttura del bruciatore a gas à ̈ determinante nel permettere un'agevole parzializzazione dello stesso. The structure of the gas burner is decisive in allowing an easy partialization of the same.
In particolare, il bruciatore a gas comprende un diffusore, il quale comprende un primo settore collegato a una linea di alimentazione del gas per alimentare i primi ugelli e un secondo settore collegato alla linea di alimentazione del gas per alimentare i secondi ugelli; il dispositivo di parzializzazione essendo configurato per escludere l’alimentazione al secondo settore in funzione della temperatura dell’acqua nel circuito dell’acqua a monte dello scambiatore di calore. In particular, the gas burner comprises a diffuser, which comprises a first sector connected to a gas supply line to supply the first nozzles and a second sector connected to the gas supply line to supply the second nozzles; the capacity control device being configured to exclude the supply to the second sector according to the temperature of the water in the water circuit upstream of the heat exchanger.
Dal punto di vista costruttivo risulta essere conveniente il fatto che il primo e il secondo settore sono separati da un setto separatore; il secondo settore comunicando con la linea di alimentazione del gas attraverso un’apertura. From the constructive point of view, it is convenient that the first and second sectors are separated by a separator baffle; the second sector communicating with the gas supply line through an opening.
Secondo una preferita forma di attuazione della presente invenzione, il dispositivo di parzializzazione comprende un otturatore per occludere l’apertura e interrompere l’alimentazione del gas al secondo settore. According to a preferred embodiment of the present invention, the throttling device comprises a shutter to block the opening and interrupt the gas supply to the second sector.
In questo modo, la parzializzazione risulta essere particolarmente semplice. In particolare l’otturatore à ̈ disposto all’interno del diffusore. In this way, the partialization is particularly simple. In particular, the shutter is arranged inside the diffuser.
Secondo una preferita forma di attuazione il dispositivo di parzializzazione comprende un sensore, il quale à ̈ sensibile alla temperatura dell’acqua ed à ̈ disposto lungo il circuito dell’acqua a monte dello scambiatore di calore. According to a preferred embodiment, the throttling device comprises a sensor, which is sensitive to the water temperature and is arranged along the water circuit upstream of the heat exchanger.
Allo scopo di attuare la presente invenzione non sono necessari sensori particolarmente accurati, ma semplicemente sensori di soglia in grado di rilevare grossomodo il superamento di un valore di soglia di temperatura. In order to carry out the present invention, no particularly accurate sensors are required, but simply threshold sensors capable of detecting roughly the exceeding of a temperature threshold value.
Secondo una preferita forma di attuazione della presente invenzione il sensore comprende un elemento termo sensibile, come ad esempio una lamina bimetallica, il quale à ̈ collegato meccanicamente all’otturatore per azionare l’otturatore fra una posizione chiusa e una posizione aperta. According to a preferred embodiment of the present invention, the sensor comprises a thermo-sensitive element, such as for example a bimetallic sheet, which is mechanically connected to the shutter to operate the shutter between a closed position and an open position.
In questo modo, il dispositivo di parzializzazione à ̈ completamente meccanico e richiede che il circuito dell’acqua a monte dello scambiatore di calore comprenda un tratto adiacente al bruciatore a gas. In this way, the capacity control device is completely mechanical and requires that the water circuit upstream of the heat exchanger includes a section adjacent to the gas burner.
Secondo un’altra preferita forma di attuazione della presente invenzione, il dispositivo di parzializzazione comprende un attuatore azionato elettricamente per spostare l’otturatore fra una posizione chiusa e una posizione aperta in funzione della temperatura rilevata dal sensore. According to another preferred embodiment of the present invention, the throttling device comprises an actuator electrically operated to move the shutter between a closed position and an open position as a function of the temperature detected by the sensor.
L’energia elettrica necessaria all’attuazione dell’attuatore può essere fornita da una pila vista l’eseguita delle forze in gioco necessarie all’attuazione dell’attuatore e dell’otturatore. The electrical energy necessary for the actuation of the actuator can be supplied by a battery given the execution of the forces involved necessary for the actuation of the actuator and shutter.
Ulteriori caratteristiche e vantaggi della presente invenzione appariranno chiari dalla descrizione che segue di sue preferite forme di realizzazione, con riferimento alle figure dei disegni annessi, in cui: Further characteristics and advantages of the present invention will become clear from the following description of its preferred embodiments, with reference to the figures of the annexed drawings, in which:
- la figura 1 Ã ̈ una vista schematica, con parti asportate per chiarezza, di uno scaldabagno istantaneo a gas in accordo con una prima forma di realizzazione della presente invenzione; - figure 1 is a schematic view, with parts removed for clarity, of an instantaneous gas water heater according to a first embodiment of the present invention;
- la figura 2 Ã ̈ una vista schematica, con parti asportate per chiarezza, di uno scaldabagno istantaneo a gas in accordo con una seconda forma di realizzazione della presente invenzione; - figure 2 is a schematic view, with parts removed for clarity, of an instantaneous gas water heater according to a second embodiment of the present invention;
- la figura 3 Ã ̈ una vista schematica, in scala ingrandita e con parti asportate per chiarezza, di un particolare dello scaldabagno della figura 1; e - figure 3 is a schematic view, on an enlarged scale and with parts removed for clarity, of a detail of the water heater of figure 1; And
- la figura 4 Ã ̈ una vista schematica, in scala ingrandita e con parti asportate per chiarezza, di un particolare dello scaldabagno della figura 2. - figure 4 is a schematic view, on an enlarged scale and with parts removed for clarity, of a detail of the water heater in figure 2.
Con riferimento alla figura 1, con 1 à ̈ indicato nel suo complesso uno scaldabagno istantaneo a gas, il quale comprende una camera di combustione 2; una cappa dei fumi 3; un circuito dell’acqua 4 che transita attraverso la camera di combustione 2; un’unità di controllo del gas 5; e un dispositivo di controllo 6 per controllare le funzioni dello scaldabagno 1. Lo scaldabagno 1 à ̈ configurato per operare in abbinamento con un serbatoio 7 contenente acqua, la quale preferibilmente à ̈ stata riscaldata con altre fonti di calore come, per esempio, dei panelli solari o pompe di calore, non illustrati nelle figure allegate. Il circuito dell’acqua 4 à ̈ collegato alla rete idrica 8 tramite una valvola miscelatrice 9. Lo scaldabagno 1 comprende, inoltre, uno scambiatore di calore 10 che à ̈ disposto nella camera di combustione 2 e definisce una parte del circuito dell’acqua 4; e un bruciatore a gas 11 disposto nella camera di combustione 2. With reference to Figure 1, 1 indicates as a whole an instantaneous gas water heater, which comprises a combustion chamber 2; a fume hood 3; a water circuit 4 which passes through the combustion chamber 2; a gas control unit 5; and a control device 6 to control the functions of the water heater 1. The water heater 1 is configured to operate in conjunction with a tank 7 containing water, which has preferably been heated with other heat sources such as, for example, panels solar or heat pumps, not shown in the attached figures. The water circuit 4 is connected to the water mains 8 by means of a mixing valve 9. The water heater 1 also comprises a heat exchanger 10 which is arranged in the combustion chamber 2 and defines a part of the circuit of the water 4; and a gas burner 11 disposed in the combustion chamber 2.
Con riferimento alla figura 3, il bruciatore a gas 11 comprende un diffusore 12 comprendente due settori 13 e 14, ciascuno dei quali comunica con una rispettive pluralità di ugelli 13A e 14A. In particolare, il diffusore 12 à ̈ una camera suddivisa da un setto separatore 15 in modo da definire una vano inferiore e un vano superiore, il quale, a sua volta, à ̈ suddiviso in due settori 13 e 14 da un setto separatore 15B. Il bruciatore a gas 11 comprende un ugello 16 per fiamma pilota alimentato in modo indipendente dal diffusore 12; un rilevatore di fiamma 17 e un dispositivo di accensione 18. With reference to Figure 3, the gas burner 11 comprises a diffuser 12 comprising two sectors 13 and 14, each of which communicates with a respective plurality of nozzles 13A and 14A. In particular, the diffuser 12 is a chamber divided by a separator partition 15 so as to define a lower compartment and an upper compartment, which, in turn, is divided into two sectors 13 and 14 by a separator partition 15B. The gas burner 11 comprises a pilot flame nozzle 16 fed independently from the diffuser 12; a flame detector 17 and an ignition device 18.
I due settori 13 e 14 comunicano con il vano inferiore attraverso due rispettive apertura 19L e 19R ricavate nel setto separatore 15. L’apertura 19R à ̈ selettivamente otturabile in funzione della temperatura dell’acqua che fluisce nel circuito dell’acqua 4 a monte dello scambiatore di calore 10 (figura 1). Nella fattispecie illustrata nella figura 3, l’otturazione dell’apertura 19R nel setto separatore 15 à ̈ realizzata da un otturatore 20 collegato direttamente a un sensore 21 disposto lungo il circuito dell’acqua 4 a monte dello scambiatore di calore 10 (figura 1). In particolare, il sensore 21 comprende una lamina bimetallica che modifica la propria configurazione in funzione della temperatura dell’acqua e determina la variazione della posizione dell’otturatore 20 senza la necessità di realizzare particolari collegamenti elettrici per la trasmissione di segnali a un organo di azionamento dell’otturatore 20. L’otturatore 20 à ̈ di fatto mobile fra una posizione aperta, nella quale tutti gli ugelli 13A e 14A del bruciatore a gas 11 sono alimentati con il gas, e una configurazione chiusa, nella quale solo gli ugelli 13A direttamente comunicanti con il settore 13 sono alimentati con gas. In pratica, il bruciatore a gas 11 à ̈ agevolmente parzializzato sostanzialmente in funzione della temperatura di ingresso allo scambiatore di calore 10 (figura 1). The two sectors 13 and 14 communicate with the lower compartment through two respective openings 19L and 19R obtained in the separator partition 15. The opening 19R can be selectively closed according to the temperature of the water flowing in the water circuit 4 upstream of the heat exchanger 10 (figure 1). In the case illustrated in Figure 3, the obturation of the opening 19R in the separator partition 15 is made by a shutter 20 connected directly to a sensor 21 arranged along the water circuit 4 upstream of the heat exchanger 10 ( Figure 1). In particular, the sensor 21 comprises a bimetallic foil which changes its configuration according to the temperature of the water and determines the variation of the position of the shutter 20 without the need to make particular electrical connections for the transmission of signals to an organ. actuating the shutter 20. The shutter 20 is in fact movable between an open position, in which all the nozzles 13A and 14A of the gas burner 11 are supplied with gas, and a closed configuration, in which only the nozzles 13A directly communicating with the sector 13 are supplied with gas. In practice, the gas burner 11 is easily partitioned substantially as a function of the inlet temperature to the heat exchanger 10 (Figure 1).
Secondo una forma di attuazione non illustrata della presente invenzione, gli ugelli del bruciatore a gas 11 sono equamente suddivisi fra i due settori. According to a not illustrated embodiment of the present invention, the nozzles of the gas burner 11 are equally divided between the two sectors.
In accordo con la forma di attuazione illustrata nelle figure 1 e 3, la parte del circuito dell’acqua 4 a monte dello scambiatore di calore 10 (figura 1) comprende una porzione disposta in prossimità del diffusore 12 in modo da collegare meccanicamente il sensore 21 all’otturatore 20, il quale à ̈ disposto all’interno del diffusore 12. In accordance with the embodiment illustrated in Figures 1 and 3, the part of the water circuit 4 upstream of the heat exchanger 10 (Figure 1) comprises a portion arranged near the diffuser 12 so as to mechanically connect the sensor 21 inside the shutter 20, which is arranged inside the diffuser 12.
Con riferimento alla figura 1, il gas di rete viene alimentato all’unità di controllo del gas 5 e da questa all’ugello della fiamma pilota 16 e al diffusore 12 lungo due linee di alimentazione del gas separate 22 e 23. L’unità di controllo del gas 5 comprende, inoltre, un dispositivo di regolazione 24 del gas lungo la linea di alimentazione del gas 23. Anche in questo caso la modulazione à ̈ realizzata in modo meccanico. Il dispositivo di regolazione 24 à ̈ di tipo meccanico e comprende un organo deformabile 25 in funzione della portata di acqua nel circuito dell’acqua 4, preferibilmente a monte dello scambiatore di calore 10, e una valvola di modulazione del gas 26 collegato meccanicamente all’organo deformabile. Il dispositivo di regolazione 24 comprende un variatore di portata 27 comandato dall’utilizzatore per modificare la portata in prossimità dell’elemento deformabile 25 e variare la portata di gas e, di conseguenza, la temperatura dell’acqua. With reference to Figure 1, the mains gas is fed to the gas control unit 5 and from this to the pilot flame nozzle 16 and to the diffuser 12 along two separate gas supply lines 22 and 23. The The gas control unit 5 also comprises a gas adjustment device 24 along the gas supply line 23. In this case too, the modulation is carried out mechanically. The regulation device 24 is of the mechanical type and comprises a deformable member 25 according to the flow rate of water in the water circuit 4, preferably upstream of the heat exchanger 10, and a gas modulation valve 26 mechanically connected to the € ™ deformable organ. The adjustment device 24 comprises a flow rate variator 27 controlled by the user to modify the flow rate near the deformable element 25 and vary the gas flow rate and, consequently, the water temperature.
Il dispositivo di controllo 6 comprende un’unità di controllo 28, una sorgente di energia 29, preferibilmente la pila per alimentare l’unità di controllo 28, un sensore fumi 30 collegato all’unità di controllo 28, il rilevatore di fiamma 17 collegato all’unità di controllo 28; e il dispositivo di accensione 18 anch’esso collegato all’unità di controllo 28. L’unità di controllo 28 à ̈ inoltre collegata all’unità di controllo del gas 5 per aprire e selettivamente chiudere l’alimentazione del gas. Vantaggiosamente lo scaldabagno 1 non necessita di un collegamento con la rete elettrica. In pratica, l’otturatore 20 e il sensore 21 (figura 3) collegati meccanicamente fra loro definiscono un dispositivo di parzializzazione del bruciatore a gas 11. The control device 6 comprises a control unit 28, an energy source 29, preferably the battery for powering the control unit 28, a smoke sensor 30 connected to the control unit 28, the flame detector 17 connected to the control unit 28; and the ignition device 18 is also connected to the control unit 28. The control unit 28 is also connected to the gas control unit 5 to open and selectively close the gas supply . Advantageously, the water heater 1 does not require a connection to the electrical network. In practice, the obturator 20 and the sensor 21 (figure 3) mechanically connected to each other define a device for choking the gas burner 11.
Lo scaldabagno 1 permette di regolare la temperatura dell’acqua erogata in una pluralità di modi. In primo luogo, la portata di gas alimentata al bruciatore a gas 11 à ̈ regolata in funzione della portata di acqua lungo il circuito dell’acqua 4 a monte dello scambiatore di calore 10. La portata di acqua nel circuito dell’acqua 4 à ̈ direttamente proporzionale alla pressione e in questo modo aziona l’organo deformabile 25 collegato alla valvola di modulazione del gas 26. Il variatore di portata 27 permette di modificare la pressione dell’acqua nel circuito dell’acqua 4 in prossimità dell’organo sensibile 25 e, quindi, il variatore di portata 27 permette di regolare la portata del gas e, in una certa misura, la temperatura dell’acqua. Il variatore di portata 27, di fatto, à ̈ azionato direttamente dall’utilizzatore dello scaldabagno 1. The water heater 1 allows you to adjust the temperature of the water delivered in a plurality of ways. In the first place, the flow of gas supplied to the gas burner 11 is regulated according to the flow of water along the water circuit 4 upstream of the heat exchanger 10. The flow of water in the water circuit 4 It is directly proportional to the pressure and in this way it activates the deformable organ 25 connected to the gas modulation valve 26. The flow rate variator 27 allows to modify the water pressure in the water circuit 4 near the Sensitive organ 25 and, therefore, the flow rate variator 27 allows to regulate the gas flow rate and, to a certain extent, the water temperature. The flow rate variator 27 is actually operated directly by the user of the water heater 1.
L’acqua che à ̈ alimentata allo scaldabagno 1 può assumere valori di temperatura sensibilmente diversi in funzione delle condizioni meteorologiche esterne. Quando la temperatura dell’acqua à ̈ superiore a un valore di soglia determinato, il diffusore 12 viene automaticamente parzializzato tramite il sensore 21 e l’otturatore 20 (figura 3). The water that is fed to the water heater 1 can assume significantly different temperature values depending on the external weather conditions. When the water temperature is higher than a determined threshold value, the diffuser 12 is automatically reduced by the sensor 21 and the shutter 20 (figure 3).
Nel raro evento in cui anche a seguito della parzializzazione del diffusore 12 l’acqua risultasse eccessivamente calda, la temperatura dell’acqua può essere ridotta con la miscelazione con acqua proveniente dalla rete idrica 8 tramite l’azionamento della valvola miscelatrice 9. In the rare event in which the water is excessively hot even following the partialization of the diffuser 12, the water temperature can be reduced by mixing it with water from the water mains 8 by operating the mixing valve 9.
Con riferimento alla figura 2, il sensore 21 à ̈ omesso ed à ̈ sostituito da un sensore 31 di temperatura, il quale à ̈ disposto lungo il circuito dell’acqua 4 a monte dello scambiatore di calore 10, e da un attuatore 32, il quale à ̈ disposto in prossimità dell’otturatore 20 (figura 4) e alimentato dall’unità di controllo del gas 5. Secondo questa forma di attuazione, il sensore 31 e l’attuatore 32 collegati elettricamente fra loro e l’otturatore 20 definiscono un dispositivo di parzializzazione del bruciatore a gas 11. With reference to Figure 2, the sensor 21 is omitted and is replaced by a temperature sensor 31, which is arranged along the water circuit 4 upstream of the heat exchanger 10, and by an actuator 32, which is arranged near the shutter 20 (figure 4) and powered by the gas control unit 5. According to this embodiment, the sensor 31 and the actuator 32 electrically connected to each other and the The obturator 20 define a throttling device for the gas burner 11.
Rispetto alla soluzione tecnica raffigurata nelle figure 1 e 3, la forma di attuazione che fa riferimento alle figure 2 e 4 à ̈ leggermente più complessa da un lato, ma permette di semplificare il circuito dell’acqua 4 a monte dello scambiatore di calore 10 non essendo necessario disporre un tratto del circuito dell’acqua 4 in adiacenza con il bruciatore a gas 11. Compared to the technical solution shown in figures 1 and 3, the embodiment referring to figures 2 and 4 is slightly more complex on the one hand, but allows to simplify the water circuit 4 upstream of the heat exchanger 10 since it is not necessary to arrange a section of the water circuit 4 adjacent to the gas burner 11.
Risulta infine evidente che allo scaldabagno istantaneo a gas descritto possono essere apportate modifiche, varianti, miglioramenti senza uscire dall’ambito delle rivendicazioni allegate. Finally, it is evident that modifications, variations, improvements can be made to the described instantaneous gas water heater without departing from the scope of the attached claims.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT001825A ITMI20111825A1 (en) | 2011-10-06 | 2011-10-06 | INSTANT GAS WATER HEATER |
| PCT/EP2012/069802 WO2013050578A1 (en) | 2011-10-06 | 2012-10-05 | Instant gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT001825A ITMI20111825A1 (en) | 2011-10-06 | 2011-10-06 | INSTANT GAS WATER HEATER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITMI20111825A1 true ITMI20111825A1 (en) | 2013-04-07 |
Family
ID=45034060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT001825A ITMI20111825A1 (en) | 2011-10-06 | 2011-10-06 | INSTANT GAS WATER HEATER |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITMI20111825A1 (en) |
| WO (1) | WO2013050578A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032937A (en) * | 2015-03-13 | 2016-10-19 | 保登科技股份有限公司 | Automatic Temperature Control System of Gas Water Heater |
| CN106016691A (en) * | 2016-07-11 | 2016-10-12 | 珠海格力电器股份有限公司 | Gas wall-mounted furnace |
| PT109749B (en) * | 2016-11-18 | 2024-05-02 | Bosch Termotecnologia Sa | DEVICE FOR HEATING APPARATUS |
| PT115209B (en) * | 2018-12-13 | 2023-01-03 | Bosch Termotecnologia Sa | HEATING DEVICE, IN PARTICULAR WATER WATER, AS WELL AS PILOT BURNER DEVICE |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE717398C (en) * | 1935-09-14 | 1942-02-13 | Junkers & Co | Boiling water heater |
| DE833692C (en) * | 1949-12-29 | 1952-03-27 | Georg Hegwein | Flow-through liquid heater with a heater container, especially for generating boiling water or steam |
| FR2296146A1 (en) * | 1974-12-24 | 1976-07-23 | Saunier Duval | FORCE DRAFT GAS BOILER REGULATION DEVICE |
| DE2943276A1 (en) * | 1979-10-26 | 1981-05-07 | Robert Bosch Gmbh, 7000 Stuttgart | Gas or oil fired water heater - has burner and flow safety flue gas flap divided into independent halves |
| EP0036236A1 (en) * | 1980-03-12 | 1981-09-23 | Rheem Nederland B.V. | Heating device |
-
2011
- 2011-10-06 IT IT001825A patent/ITMI20111825A1/en unknown
-
2012
- 2012-10-05 WO PCT/EP2012/069802 patent/WO2013050578A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE717398C (en) * | 1935-09-14 | 1942-02-13 | Junkers & Co | Boiling water heater |
| DE833692C (en) * | 1949-12-29 | 1952-03-27 | Georg Hegwein | Flow-through liquid heater with a heater container, especially for generating boiling water or steam |
| FR2296146A1 (en) * | 1974-12-24 | 1976-07-23 | Saunier Duval | FORCE DRAFT GAS BOILER REGULATION DEVICE |
| DE2943276A1 (en) * | 1979-10-26 | 1981-05-07 | Robert Bosch Gmbh, 7000 Stuttgart | Gas or oil fired water heater - has burner and flow safety flue gas flap divided into independent halves |
| EP0036236A1 (en) * | 1980-03-12 | 1981-09-23 | Rheem Nederland B.V. | Heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013050578A1 (en) | 2013-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2694022T3 (en) | Control arrangement for a gas stove | |
| CN106642711B (en) | Dual sensing combustion system | |
| KR200469253Y1 (en) | Premix Combustion Device of Gas Burner | |
| AU2014247379B2 (en) | Hot Water Supply System | |
| ITMI20111825A1 (en) | INSTANT GAS WATER HEATER | |
| WO2009040243A3 (en) | Gas cooktop | |
| ITPD20100385A1 (en) | DEVICE FOR CONTROLLING THE DISTRIBUTION OF A FUEL GAS TOWARDS A BURNER, PARTICULARLY FOR WATER HEATERS | |
| ES2763798T3 (en) | Gas water heater and safety control system and procedure for it | |
| US20140007821A1 (en) | Electronically-Controlled Tankless Water Heater with Pilotless Ignition | |
| US20130015172A1 (en) | Electric heating device | |
| JP7265964B2 (en) | Water heater | |
| RU2596081C1 (en) | Diffusion-kinetic burner | |
| US9188334B2 (en) | Dual fuel heater | |
| RU2309331C1 (en) | Two-step atmospheric gas burner | |
| JP2014219121A (en) | Boiler | |
| JP5096983B2 (en) | Combustion equipment | |
| CN202267134U (en) | Gas heating stove | |
| JP2017067409A (en) | Combined heat source machine | |
| RU112747U1 (en) | GAS FLOWING WATER HEATER | |
| TWM319383U (en) | The safty controller of a burner | |
| JP6748703B2 (en) | Gas fired boiler with high regulation rate | |
| ITTO20060628A1 (en) | METHOD FOR CHECKING A FLUID AND HOUSEHOLD VALVE THAT USES IT | |
| ITMO20120329A1 (en) | CHECKING AND ADJUSTING THE FUEL | |
| CN203744529U (en) | Temperature control coal-fired hot blast furnace | |
| JP5872963B2 (en) | Water heater |