CN100516704C - Gas boiler - Google Patents

Gas boiler Download PDF

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Publication number
CN100516704C
CN100516704C CNB2004800048630A CN200480004863A CN100516704C CN 100516704 C CN100516704 C CN 100516704C CN B2004800048630 A CNB2004800048630 A CN B2004800048630A CN 200480004863 A CN200480004863 A CN 200480004863A CN 100516704 C CN100516704 C CN 100516704C
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China
Prior art keywords
boiler
gas fired
domestic water
heat exchanger
storage tank
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Expired - Fee Related
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CNB2004800048630A
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CN1754068A (en
Inventor
朱塞佩·博塔利尼
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Riello SpA
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Riello SpA
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • F24H1/523Heat exchangers for sanitary water directly heated by the burner
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48Water heaters for central heating incorporating heaters for domestic water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Glass Compositions (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

A combination gas boiler (1; 55) for producing heating water and domestic water has a heating circuit (7) and a domestic circuit (8), a gas burner (9), a heat exchanger (10; 57) located along the domestic circuit (8), and at least one tank (20) located along the domestic circuit (8), downstream from the heat exchanger (10; 57), and connected to the heat exchanger (10; 57) by a domestic recirculating branch (21); a pump (26) is incorporated in the tank (20) for selectively recirculating the domestic water contained in the tank (20) along the recirculating branch (21) to the heat exchanger (10; 57), so as to keep the domestic water in the tank (20) above a given temperature.

Description

Gas fired-boiler
Technical field
The present invention relates to a kind of gas fired-boiler.
More specifically, the present invention relates to a kind of arta wall-mounted combination gas boiler, promptly a kind of being used for hot water and the wall-hung boiler of life with the hot water supply heating circuit, the hot water of supplying with heating circuit hereinafter referred to as adds hot water---and the domestic hot water.
Background technology
Arta wall-mounted combination gas boiler generally includes heating circuit, and the hot water that adds of heat conducts along this loop; And domestic circuit, domestic water is along this loop conduction.Heating circuit is connected on the external heat loop that radiator is housed; One end of domestic circuit is connected on water-main or other the domestic water water source, and the other end is connected the loop that is used for hot domestic water is assigned to one or more subscriber equipment.Arta wall-mounted combination gas boiler also includes gas combustion apparatus and at least one two-way heat exchanger or a main heat exchanger and a secondary heat exchanger, and the heat transferred that is used for that described gas combustion apparatus is produced adds hot water and domestic water.
When hot domestic water flowed out by subscriber equipment, the gas fired-boiler of the above-mentioned type was according to following steps work: after detecting domestic water flow, light gas combustion apparatus along the flowmeter of domestic circuit location; When flowing through two-way heat exchanger or secondary heat exchanger at domestic water, the heating domestic water, and it is fed to subscriber equipment.Above-mentioned wall-hanging gas fired-boiler has some shortcomings, and it can't supply with subscriber equipment immediately with the domestic water with predetermined temperature.That is to say that at the water of supply with reach between the water of predetermined temperature of short duration a period of time is arranged, during this period, domestic water is with the temperature supply that raises gradually, till reaching predetermined temperature.
In order to eliminate top shortcoming, European patent 719,989 have proposed a kind of arta wall-mounted combination gas boiler, it is equipped with the domestic water storage tank, this domestic water storage tank is located along domestic circuit, be in the downstream of two-way heat exchanger or secondary heat exchanger, this gas fired-boiler has auxiliary firing equipment, is used to make the domestic water in the domestic water storage tank to remain in the given temperature range.According to top patent and patent application, described auxiliary firing equipment is limited by the resistor in the domestic water storage tank, temperature sensor with as the function that detects temperature, the control module that is used for the starting resistance silk.From the viewpoint of making, this solution is feasible, but considers power consumption, and then this solution is expensive.All described among another embodiment of superincumbent patent and patent application: auxiliary firing equipment comprises the secondary unit in the domestic water storage tank; Temperature sensor; And control module, being used for optionally hot water being transferred to secondary unit, this heat exchanger is limited by the coiled pipe by the heating circuit supply.This solution gets into smooth more cheap, but for actual manufacturing, this solution still has shortcoming.That is to say that the conduction branch from heating circuit to the domestic water storage tank makes the domestic water storage tank become complicated, and has increased the component count that is used to assemble.Whatsoever connect, what should remember is that the building block of each assembling must guarantee appropriate watertightness, and must meet strict security regulations.And the hole in the coiled pipe may be connected to heating circuit on the domestic circuit, thereby seriously damages gas fired-boiler on the whole.
Summary of the invention
An object of the present invention is to provide a kind of combination gas gas boiler that is equipped with the domestic water storage tank, this domestic water storage tank provide with on a kind of function and the structure all simply, mode remains in the given temperature range domestic water in the domestic water storage tank cheaply.
According to the present invention, provide a kind of combination gas gas boiler, be used for producing and add hot water and domestic water, this gas fired-boiler comprises heating circuit and domestic circuit, gas combustion apparatus, is positioned the domestic water storage tank in described two-way heat exchanger downstream along the two-way heat exchanger of domestic circuit location and at least one; This gas fired-boiler is characterised in that it comprises the family expenses loop branch pipe that is combined in the pump in the described domestic water storage tank and is used for optionally domestic water being conducted to from the domestic water storage tank described two-way heat exchanger.
According to a kind of modification of the present invention, provide a kind of combination gas gas boiler, be used for producing and add hot water and domestic water, this gas fired-boiler comprises heating circuit and domestic circuit, gas combustion apparatus, is positioned the domestic water storage tank in described secondary heat exchanger downstream along the secondary heat exchanger of domestic circuit location and at least one; This gas fired-boiler is characterised in that it comprises the family expenses loop branch pipe that is combined in the pump in the described domestic water storage tank and is used for optionally domestic water being conducted to from the domestic water storage tank described secondary heat exchanger.
According to the present invention, auxiliary firing equipment is not provided, use be those parts that formed gas fired-boiler part.And, pump is combined in greatly simplified loop branch pipe in the domestic water storage tank, and make quantity and the assembly working of realizing the needed building block of circulation reduce to minimum.
The invention still further relates to a kind of method of operating gas fired-boiler.
According to the present invention, provide a kind of operation method of gas fired-boiler as described in the present invention, wherein, temp probe is located along the domestic circuit between described two-way heat exchanger or secondary heat exchanger and the described domestic water storage tank; Described method is characterised in that it comprises the steps:
-make domestic water cycle through described domestic water storage tank and two-way heat exchanger or secondary heat exchanger with predetermined time interval;
-in described circulation step, rely on temp probe, obtain first temperature of relevant domestic water temperature;
-described first temperature is compared with design temperature;
-when described first temperature is lower than design temperature, light gas combustion apparatus, and the water circulation that lives on.
Description of drawings
Below in conjunction with accompanying drawing description of the present invention several non-limiting embodiment as an example, in the accompanying drawings:
What Fig. 1 showed is according to schematic diagram of the present invention, that be connected the gas fired-boiler on the external circuit, for clarity sake, has removed several parts;
What Fig. 2 showed is the zoomed-in view of the domestic water storage tank perspective view of gas fired-boiler among Fig. 1;
What Fig. 3 showed is the sectional view of the details amplification of domestic water storage tank among Fig. 2, for clarity sake, has removed several parts;
What Fig. 4 and Fig. 5 showed is the decomposition diagram of the details of domestic water storage tank among Fig. 2;
The schematic diagram of a kind of variation of gas fired-boiler for clarity sake, has removed several parts among Fig. 1 that Fig. 6 shows.
The specific embodiment
It is overall that mark 1 expression among Fig. 1 is used to supply the arta wall-mounted combination gas boiler of the domestic water that adds hot water and heat of heat.Boiler 1 includes the housing shown in the chain-dotted line among Fig. 1, and it is connected on the subscriber equipment 5 and main tracheae 6 of the external heat loop 2 that is equipped with radiator 3, water-main 4, domestic water.In housing, boiler 1 include heating circuit 7, domestic circuit 8, gas combustion apparatus 9 and be used for making heat that burning produces and heating circuit 7 add the two-way heat exchanger (bithermalexchanger) 10 that the domestic water circulation in hot water circulation and the domestic circuit 8 all exchanges.
Heating circuit 7 comprises the bypass branch 13 of exit branch 11, return branch 12 and connecting branch 11 and 12.Return branch 12 with add hot water circulating pump 14 and expansion vessel 15 matches; Arm 13 matches with bypass valve 16.
Domestic circuit 8 comprises arm 17, and this arm is used for cold domestic water is supplied with two-way heat exchanger 10; Arm 18 is used for the domestic water of heat is supplied with subscriber equipment 5 from two-way heat exchanger 10; Flowmeter 19 along arm 17; Domestic water storage tank 20 along arm 18; And family expenses loop branch pipe 21, it is positioned between domestic water storage tank 20 and the arm 17.That is to say that arm 21 is directly connected to arm 17 with domestic water storage tank 20, and include check valve 22, make domestic water only flow to arm 17 from domestic water storage tank 20.Loop 8 also comprises temp probe 23, and this probe is positioned between domestic water storage tank 20 and the two-way heat exchanger 10 along arm 18; And boiler 1 comprises the insulated shell 24 around water tank 20.
With reference to Fig. 2, domestic water storage tank 20 extends along axis A, and comprises cup-shaped body 25, and this cup-shaped body one end is open; With pump 26, be engaged on the cup-shaped body 25 the feasible lid that forms described cup-shaped body.Cup-shaped body 25 is made by plastic material, extends along axis A, and includes the sidewall 28 (near the tapering of zero degree) of end wall 27, frustoconical, some vertical ribs 29 and horizontal ribs 30.Inlet fitting 31, the first outlet accessory 32 and the second outlet accessory 33 are along cup-shaped body 25 location, so that domestic water storage tank 20 is connected on arm 18 and 21.More specifically, inlet fitting 31 near walls 27 location, from two-way heat exchanger 10 domestic water storage tank 20 being connected on the arm 18, thereby defines the domestic water inlet of domestic water storage tank 20 along wall 28; The first outlet accessory 32 is positioned on the pump 26, supplies the arm 18 of subscriber equipment 5 with connection, and defines the domestic water outlet of domestic water storage tank 20; And the second outlet accessory 33 is positioned on the pump 26, and is positioned at and the relative side of the first outlet accessory 32, so that domestic water storage tank 20 is connected on the loop branch pipe 21, and defines another domestic water outlet of domestic water storage tank 20.With reference to Fig. 3 and Fig. 4, at openend, cup-shaped body 25 comprises first flange 34, and the groove 36A (Fig. 4) that has the shoulder 35 perpendicular with axis A, cylindrical wall 36 in this first flange and extend along wall 36 and the A that parallels to the axis is so that be formed for the seat 37 of pump 26.
With reference to Fig. 4 and Fig. 5, pump 26 includes electric motor assembly 38 and diffuser 39, and they match with cup-shaped body 25, to form domestic water storage tank 20.Electric motor assembly 38 includes synchronous motor 40; Axostylus axostyle 41 (Fig. 3); Radial bladed impeller 42; And the single-piece support member 43 that is incorporated into motor 40, axostylus axostyle 41 partly protrudes from described support member, and impeller 42 then fully protrudes from described support member.Electric motor assembly 38 comprises the rotor 44 that is combined in the support member 43.In other words, support member 43 comprises the shell 43A around rotor 44; With second flange 45, impeller 42 protrudes from this second flange, protrudes 46 along this second flange location around the cylindrical shape that axis A extends.That is to say that the shell 43A and second flange 45 form parts that do not have opening, these parts be made by seeing through electromagnetic plastic material, make except the building block of support electric motor assembly 38, and support member 43 is also as the lid of cup-shaped body 25.
Diffuser 39 is made up of plastic material with the form of single parts, and described diffuser is cup-shaped, and comprises the planar wall 47 perpendicular to axis A, from the described planar wall epirelief cylindrical outer wall 48 of rib 49 of A that goes out to have to parallel to the axis.Diffuser 39 also includes volute body 50, and it is protruding with the relative side of wall 48, and includes with the coaxial center suction eye 51 of axis A and be used for this volute body 50 is connected horizontal apopore 52 on the second outlet accessory 33.
In diffuser 39 quilt covers present 37, wall 47 leans against on the shoulder 35, wall 48 contacts with wall 36, rib 49 engages with groove 36A, to limit rib straight coupling and diffuser 39 unique position, so that make delivery port 52 keep towards the second outlet accessory 33 and be connected second exporting on the accessory 33 with respect to cup-shaped body 25.Second flange 45 of electric motor assembly 38 is engaged on first flange 34 of cup-shaped body 25, make impeller 42 be housed in the volute body 50, columnar protrusion 46 contacts with the inner surface of wall 48, makes wall 48, wall 36, second flange 45 and protrude 46 top and form an enclosed cavity that holds seal 53.
With reference to Fig. 1, gas fired-boiler 1 also comprises control module 54, and the signal that it receives from flowmeter 19 and probe 23 provides the switch control of the motor 40 of gas combustion apparatus 9 and pump 26, and the external data of setting, all domestic hot water temperature as requested are provided.
In actual use, gas fired-boiler 1 is operated in the following manner.When subscriber equipment 5 did not have water to flow out, domestic water storage tank 20 had held the domestic water of a large amount of relatively hots that heats in outflow last time process.Yet because inevitable thermal loss, the temperature of domestic water little by little descends in the domestic water storage tank 20.Thereby, with the time interval priming pump 26 of rule, and make domestic water cycle through two-way heat exchanger 10 and domestic water storage tank 20, the temperature T of the relevant domestic water temperature of 23 detections of popping one's head in simultaneously RIn this step, with temperature value T RWith setting value T SETCompare; And in detected temperature T RBe lower than the temperature T of setting SETThe time, light gas combustion apparatus 9, and make pump 26 keep running, up to temperature T RReach design temperature T SETTill.At this moment, extinguish gas combustion apparatus 9, and pump 26 continues to make water to circulate a scheduled time, to obtain waste heat from two-way heat exchanger 10.In winter, making domestic water cycle through two-way heat exchanger 10 simply just can be enough to make water return to design temperature.The circulation step of the temperature conditions whether heat of determining two-way heat exchanger 10 is enough to recover required continues about 30 seconds.If at this moment, do not recover as yet by the temperature that probe 23 is measured, control module 54 is used to light 9 a period of times of gas combustion apparatus according to the capacity of domestic water storage tank 20 and the flow of pump 26 so, and pump 26 is understood as described above, and mode makes domestic water continue circulation.Opposite is, if water flows out by subscriber equipment 5, from the signal of flowmeter 19 pump 26 is stopped so or stops the operation of starting recovery temperature.
With reference to the variation among Fig. 6, Reference numeral 55 indication be the gas fired-boiler that mainly comprises with the similar parts of the building block of gas fired-boiler 1, these building blocks in Fig. 6 with employed identical Reference numeral indication in Fig. 1.
Gas fired-boiler 55 is inequality substantially with gas fired-boiler 1, it has replaced two-way heat exchanger 10 with main heat exchanger 56 and secondary heat exchanger 57, main heat exchanger is provided for the hot water that adds that heats individually, and secondary heat exchanger is used for heat is delivered to domestic circuit 8 from heating circuit 7.In this case, domestic water storage tank 20 and probe 23 are along arm 18 location of domestic circuit 8, and they are in the downstream of secondary heat exchanger 57.Heating circuit 7 includes the loop branch pipe 58 that arm 11 is connected to secondary heat exchanger 57; Secondary heat exchanger 57 is connected arm 59 on the arm 12; With electric-controlled type triple valve 60 at arm 59 and 12 joints.In this changed, control module 54 was connected to triple valve 60 and pump 14, added circulation and the heating of hot water by main heat exchanger 56 and secondary heat exchanger 57 with control.In secondary heat exchanger 57, heating water generates heat is given domestic water.
Operation is also inequality with aforesaid operations, and the temperature in the domestic water storage tank 20 adds hot water by circulation and domestic water keeps.In all others, all with the described water temperature that keeps in the domestic water storage tank 20 of previous embodiment.
What found is, the domestic water storage tank 20 that uses capacity to be preferably 2-5 to rise, flow as the 2-6 liter/minute pump 26 and approximately the synchronous motor 40 of 20W will obtain optimum, they provide very short recovery temperature circulation with very little power consumption.
Except the advantage of having mentioned, should be pointed out that domestic water storage tank 20 is by also having the advantage that the hydraulic pressure test that makes domestic water storage tank 20 has in fact also comprised the hydraulic pressure test of pump 26 in conjunction with pump 26.And domestic water storage tank 20 compact conformations are also made by plastic material.

Claims (34)

1. one kind is used to produce the combination gas gas boiler that adds hot water and domestic water, and described gas fired-boiler (1) comprising:
Heating circuit (7) and domestic circuit (8);
Gas combustion apparatus (9);
Two-way heat exchanger (10), this two-way heat exchanger is located along described domestic circuit (8); With
At least one domestic water storage tank (20), this storage tank are in the downstream of described two-way heat exchanger (10) along described domestic circuit (8) location;
Described gas fired-boiler (1) is characterised in that it comprises the circulating pump (26) that is combined in the described domestic water storage tank (20); With
Family expenses loop branch pipe (21), it is used for optionally domestic water being delivered to described two-way heat exchanger (10) from described domestic water storage tank (20).
2. gas fired-boiler as claimed in claim 1 is characterized in that, described domestic water storage tank (20) comprises cup-shaped body (25); With the lid that limits by described circulating pump (26).
3. gas fired-boiler as claimed in claim 2 is characterized in that, described cup-shaped body (25) comprises first flange (34), and this first flange is coupled on the described circulating pump (26).
4. as claim 2 or 3 described gas fired-boilers, it is characterized in that described cup-shaped body (25) comprises inlet fitting (31), the first outlet accessory (32) and the second outlet accessory (33).
5. gas fired-boiler as claimed in claim 4 is characterized in that, described cup-shaped body (25) comprises sidewall (28), and the described first outlet accessory (32) and the second outlet accessory (33) are located along described sidewall near described first flange (34).
6. gas fired-boiler as claimed in claim 5 is characterized in that, described inlet fitting (31) is in an end relative with described first flange (34) along described cup-shaped body (25) location.
7. gas fired-boiler as claimed in claim 2 is characterized in that, described cup-shaped body (25) is made by plastic material.
8. gas fired-boiler as claimed in claim 7 is characterized in that, described cup-shaped body (25) comprises ribs (29,30).
9. gas fired-boiler as claimed in claim 3 is characterized in that, described circulating pump (26) comprises electric motor assembly (38) and diffuser (39), and they are engaged on the described cup-shaped body (25).
10. gas fired-boiler as claimed in claim 9 is characterized in that, described cup-shaped body (25) is included in the seat (37) that described first flange (34) is located, and this seat is used to hold described diffuser (39).
11. gas fired-boiler as claimed in claim 10 is characterized in that, described diffuser (39) comprises center suction eye (51) and horizontal apopore (52).
12. each the described gas fired-boiler as in the claim 10 to 11 is characterized in that described electric motor assembly (38) comprises support member (43), it has second flange (45) that can be connected to described first flange (34).
13. gas fired-boiler as claimed in claim 12 is characterized in that, it comprises the seal (53) that places between described cup-shaped body (25), described diffuser (39) and the described electric motor assembly (38).
14. gas fired-boiler as claimed in claim 1 is characterized in that, described circulating pump (26) provides power by synchronous motor (40).
15. gas fired-boiler as claimed in claim 1 is characterized in that, this gas fired-boiler comprises supply arm (17), is used for domestic water is supplied with described two-way heat exchanger (10); Described family expenses loop branch pipe (21) is directly connected to described supply arm (17) with domestic water storage tank (20).
16. gas fired-boiler as claimed in claim 15, it is characterized in that, it comprises along the check valve (22) of described family expenses loop branch pipe (21) location, makes domestic water only be fed to described two-way heat exchanger (10) along described family expenses loop branch pipe (21) from domestic water storage tank (20).
17. the method for each described gas fired-boiler in operation such as the claim 1 to 16, wherein, temp probe (23) is positioned between described two-way heat exchanger (10) and the described domestic water storage tank (20) along described domestic circuit (8); The method is characterized in that, comprise the steps:
Make domestic water cycle through described domestic water storage tank (20) and two-way heat exchanger (10) with predetermined time interval;
-in described circulation step, obtain the first temperature (T of relevant domestic water temperature by means of temp probe (23) R);
-with the described first temperature (T R) and design temperature (T SET) compare;
-at the described first temperature (T R) be lower than design temperature (T SET) time, light gas combustion apparatus (9), and the water circulation that lives on.
18. one kind is used to produce the combination gas gas boiler that adds hot water and domestic water, described gas fired-boiler (55) comprising:
Heating circuit (7) and domestic circuit (8);
Gas combustion apparatus (9);
Main heat exchanger (56) is provided for being heated to the water of heating circuit (7);
Secondary heat exchanger (57), this pair heat exchanger is along described domestic circuit (8) location, and described secondary heat exchanger (57) is delivered to domestic circuit (8) with heat from heating circuit (7); With
At least one domestic water storage tank (20), this storage tank are in the downstream of described secondary heat exchanger (57) along described domestic circuit (8) location;
Described gas fired-boiler (1) is characterised in that it comprises the circulating pump (26) that is combined in the described domestic water storage tank (20); With
Family expenses loop branch pipe (21), it is used for optionally domestic water being delivered to described secondary heat exchanger (57) from described domestic water storage tank (20).
19. gas fired-boiler as claimed in claim 18 is characterized in that, described domestic water storage tank (20) comprises cup-shaped body (25); With the lid that limits by described circulating pump (26).
20. gas fired-boiler as claimed in claim 19 is characterized in that, described cup-shaped body (25) comprises first flange (34), and this first flange is coupled on the described circulating pump (26).
21., it is characterized in that described cup-shaped body (25) comprises inlet fitting (31), the first outlet accessory (32) and the second outlet accessory (33) as claim 19 or 20 described gas fired-boilers.
22. gas fired-boiler as claimed in claim 21 is characterized in that, described cup-shaped body (25) comprises sidewall (28), and the described first outlet accessory (32) and the second outlet accessory (33) are located along described sidewall near described first flange (34).
23. gas fired-boiler as claimed in claim 22 is characterized in that, described inlet fitting (31) is in an end relative with described first flange (34) along described cup-shaped body (25) location.
24. gas fired-boiler as claimed in claim 19 is characterized in that, described cup-shaped body (25) is made by plastic material.
25. gas fired-boiler as claimed in claim 24 is characterized in that, described cup-shaped body (25) comprises ribs (29,30).
26. gas fired-boiler as claimed in claim 20 is characterized in that, described circulating pump (26) comprises electric motor assembly (38) and diffuser (39), and they are engaged on the described cup-shaped body (25).
27. gas fired-boiler as claimed in claim 26 is characterized in that, described cup-shaped body (25) is included in the seat (37) that described first flange (34) is located, and this seat is used to hold described diffuser (39).
28. gas fired-boiler as claimed in claim 27 is characterized in that, described diffuser (39) comprises center suction eye (51) and horizontal apopore (52).
29. each the described gas fired-boiler as in the claim 27 to 28 is characterized in that described electric motor assembly (38) comprises support member (43), it has second flange (45) that can be connected to described first flange (34).
30. gas fired-boiler as claimed in claim 29 is characterized in that, it comprises the seal (53) that places between described cup-shaped body (25), described diffuser (39) and the described electric motor assembly (38).
31. gas fired-boiler as claimed in claim 18 is characterized in that, described circulating pump (26) provides power by synchronous motor (40).
32. gas fired-boiler as claimed in claim 18 is characterized in that, this gas fired-boiler comprises supply arm (17), is used for domestic water is supplied with described secondary heat exchanger (57); Described family expenses loop branch pipe (21) is directly connected to described supply arm (17) with domestic water storage tank (20).
33. gas fired-boiler as claimed in claim 32, it is characterized in that, it comprises along the check valve (22) of described family expenses loop branch pipe (21) location, makes domestic water only be fed to described secondary heat exchanger (57) along described family expenses loop branch pipe (21) from domestic water storage tank (20).
34. the method for each described gas fired-boiler among operation such as the claim 18-33, wherein, temp probe (23) is positioned between described secondary heat exchanger (57) and the described domestic water storage tank (20) along described domestic circuit (8); The method is characterized in that, comprise the steps:
Make domestic water cycle through described domestic water storage tank (20) and secondary heat exchanger (57) with predetermined time interval;
-in described circulation step, obtain the first temperature (T of relevant domestic water temperature by means of temp probe (23) R);
-with the described first temperature (T R) and design temperature (T SET) compare;
At the described first temperature (T R) be lower than design temperature (T SET) time, light gas combustion apparatus (9), and the water circulation that lives on.
CNB2004800048630A 2003-02-21 2004-02-20 Gas boiler Expired - Fee Related CN100516704C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000319A ITMI20030319A1 (en) 2003-02-21 2003-02-21 GAS BOILER.
ITMI2003A000319 2003-02-21

Publications (2)

Publication Number Publication Date
CN1754068A CN1754068A (en) 2006-03-29
CN100516704C true CN100516704C (en) 2009-07-22

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Application Number Title Priority Date Filing Date
CNB2004800048630A Expired - Fee Related CN100516704C (en) 2003-02-21 2004-02-20 Gas boiler

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EP (1) EP1595097B1 (en)
CN (1) CN100516704C (en)
AT (1) ATE358801T1 (en)
DE (1) DE602004005671T2 (en)
ES (1) ES2283987T3 (en)
IT (1) ITMI20030319A1 (en)
PL (1) PL211041B1 (en)
WO (1) WO2004074744A1 (en)

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JP6745039B2 (en) * 2016-11-25 2020-08-26 株式会社ノーリツ Heating water heater
SK8116Y1 (en) 2017-06-16 2018-06-01 Protherm Production S R O Electronically adjustable bypass valve integrated into an electronically controlled three-way valve

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GB2330649A (en) * 1997-10-27 1999-04-28 Alpha Therm Limited A water heating arrangement

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DE602004005671D1 (en) 2007-05-16
ATE358801T1 (en) 2007-04-15
DE602004005671T2 (en) 2007-12-27
EP1595097A1 (en) 2005-11-16
ES2283987T3 (en) 2007-11-01
PL376936A1 (en) 2006-01-09
PL211041B1 (en) 2012-04-30
WO2004074744A1 (en) 2004-09-02
CN1754068A (en) 2006-03-29
EP1595097B1 (en) 2007-04-04
ITMI20030319A1 (en) 2004-08-22

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